Return-Path: Delivered-To: craig@sbc-85.com Received: from gator4254.hostgator.com by gator4254.hostgator.com with LMTP id yJqtAx+QqWQwSwEAcizydQ (envelope-from ) for ; Sat, 08 Jul 2023 11:34:39 -0500 Return-path: Envelope-to: craig@sbc-85.com Delivery-date: Sat, 08 Jul 2023 11:34:39 -0500 Received: from mail-lf1-f49.google.com ([209.85.167.49]:45511) by gator4254.hostgator.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.96) (envelope-from ) id 1qIAtJ-000Wze-1g for craig@sbc-85.com; Sat, 08 Jul 2023 11:34:38 -0500 Received: by mail-lf1-f49.google.com with SMTP id 2adb3069b0e04-4fb96e2b573so4684401e87.3 for ; Sat, 08 Jul 2023 09:34:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1688834065; x=1691426065; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=y8IrXE4zVTovQgXENKnopTCJg4icchUueL0z2gGKX1E=; b=PvTRo+0ZSSGAHdVE7zl5+YjIf6io1LFJSUsDpWL3hiaxxrMlwMteAAGoziAu64/yna NC0LiSfDppdoy5o7tibtZ/Kf/8SOYaV8WXHNphNGql+fgVxp9HYHO1HG5+V2Npqc7154 GzK3TrZJo93QFoGMjPLRLFDXJmkMSNClTMAsvODd4GKPCoxH9XBrSLyD4PsyB2bPqEce VzWOpGIrHglB7GVKgT1LKWLfutdjNHDXFpdHLSdhNXc3FmSFLD8sGgQsD6YINZUpNlud +c2TNsLcdoH/01u7y+ThviUHYmrT7oF8lltCVHIQf6rdE65mdgxjKFRDuxLN1oMQIZR0 HMyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688834065; x=1691426065; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=y8IrXE4zVTovQgXENKnopTCJg4icchUueL0z2gGKX1E=; b=YGRRheS0rw68tB8SfpkInqLLboZysbqH8InDFR/owi3M758sqg5AmGANJaAz5Iv745 cuXH6/zOJUTMA5GtUkhFNZ1QAp3RmuTxam7gczz1/LEBQka+6OB/1LnhXLJOIkWBUU8Z 5GNarUlnXYuX1HlkPmr6gRASrlcQbcK2nQI+8oW+cQTzolnz10eo3vXygH40oBS0VhG1 hC3LcIdIX+PGZJX/FvdmJ9GcMKIQNp+bbAxDfyLBANqoEu29UI3lC9gkmnxXjKHoU+zd B7Ki0yhTVSgGNtO8EwBlk+lEiva1WLUK/VSIjDFPNWS0TnmgLV0oJUO2nhUZww06bQf5 4KeQ== X-Gm-Message-State: ABy/qLaUdSRJw8lekPSnozHy8FV1IwhRHkoOd8qXd8DjpsPtJ6EFIId6 o/WE32z3wgZm2S8faJB3M81UL/9cf2PDuyoEe4yCH1EmHNw= X-Google-Smtp-Source: APBJJlHy928iLDKrQSaw1PXE12PLK0tnvO8Qo3UXvVAGi1Q9CCw7eXCdZiEgoDjyiQqW520q6x6mcOjs2EG8sGzbOwg= X-Received: by 2002:a05:6512:3b1f:b0:4f8:418e:1e49 with SMTP id f31-20020a0565123b1f00b004f8418e1e49mr7547702lfv.16.1688834064616; Sat, 08 Jul 2023 09:34:24 -0700 (PDT) MIME-Version: 1.0 References: <7515A910-08B9-4F77-8AD6-26E117D08DA7@sbc-85.com> In-Reply-To: From: Scott Baker Date: Sat, 8 Jul 2023 09:34:12 -0700 Message-ID: Subject: Re: [Tindie Community] [PM] Order status To: SBC-85 Content-Type: multipart/alternative; boundary="00000000000081916b05fffc5200" X-Spam-Status: No, score=-0.2 X-Spam-Score: -1 X-Spam-Bar: / X-Spam-Flag: NO --00000000000081916b05fffc5200 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable You might have already seen it, but my second bubble video is now up -- https://www.youtube.com/watch?v=3DsNuio7UfHlc Scott On Thu, Jun 29, 2023 at 4:27=E2=80=AFPM Scott Baker wro= te: > The last 1% was conquered. I was able to read and write the double-bubble > in Heathkit HDOS without issue. I will probably do a video, but to the > average person (i.e. everyone but you and I!) the experience won't look > much different than the single-bubble board. The CPU requirements are > challenging as the bubble scales -- I wish I had designed my board so tha= t > it supported interrupts. If I do a respin some day... > > The secret to the double-bubble is what I mentioned about 1 message > upthread, namely the need to initialize with the NFC set to 0001 (as if > you're initializing a single-bubble system) and the Group Select set to t= he > last bubble. If you don't do that, all sorts of things will go comically > wrong (like the two memories becoming disassociated after the next reset)= . > > Scott > > On Tue, Jun 27, 2023 at 9:25=E2=80=AFPM SBC-85 wrote: > >> I remember this now that you said it, but would have been hard pressed t= o >> recall it at Will. >> >> How did the last 1% go? Looking forward to a follow up video on the two >> bubble system. >> Did you have to reseed and bubbles using my reseed module? >> Regards >> Craig >> >> On Jun 18, 2023, at 8:40 PM, Scott Baker wrote: >> >> =EF=BB=BF >> It took a while, but I think I closed on the remaining 1%. >> >> Here's the only real trick in the manual (in the BPK-72 manual, but not >> in the 7220 datasheet, not as far as I could tell): >> >> "The BMC executes the Initialize command by first interrogating the >> bubble system >> to determine how many FSAs are present, then reading and decoding the >> bootloop >> from each MBM and storing the results in the corresponding FSA=E2=80=99s= bootloop >> register. >> >> *The NFC bits in the BLR MSB must be set to 0001 before issuing >> theInitialize command. The MBM GROUP SELECT bits (in the AR) must select >> thelast MBM in the system*." >> >> If you mess this up, then various bad things can happen. For example, I >> was initializing with BLR_MSB set properly, but had the BAR selecting th= e >> wrong MBM. This caused everything to appear to work fine until I reboote= d, >> then I would get a plethora of errors after the next initialization. >> Perhaps it was because the bootloop for the second memory wasn't getting >> loaded. Anyhow, I fixed the bug and it's working now. >> >> The CPU requirements also turned out to scale steeper than expected. >> Whereas my 2MHz Z80 can handle a single bubble, my 4MHz Z80 cannot. I ha= d >> to step the Z80 up to 8MHz to get it to work. I'm hoping a 5MHz 8085 wil= l >> also work. >> >> Scott >> >> On Sun, Jun 18, 2023 at 8:18=E2=80=AFPM SBC-85 wrote: >> >>> Hi Scott, >>> No, I have not built a multi-bubble. So if there are any hidden tricks >>> I am very interested. You have no doubt seen intels design for multipl= e >>> bubbles. >>> I may make a STD bus bubble board and would have room for a double on >>> that. >>> >>> Regards >>> Craig >>> >>> On Jun 18, 2023, at 4:39 PM, Scott Baker wrote: >>> >>> =EF=BB=BF >>> Behold, the mighty double-bubble! >>> >>> Do you have any experience with multiple-bubble designs? Getting this >>> working gave me a bit of grief, and I think I'm only about 99% there wi= th >>> 1% left to figure out. >>> >>> Scott >>> >>> On Tue, Jun 6, 2023 at 10:44=E2=80=AFPM Scott Baker = wrote: >>> >>>> Glad you found your way there -- I was just about to send you a pointe= r >>>> to the video. >>>> >>>> I've updated the link to your site. Thanks a lot for all the help! >>>> >>>> Scott >>>> >>>> On Tue, Jun 6, 2023 at 6:22=E2=80=AFPM wrote: >>>> >>>>> Hi Scott >>>>> >>>>> >>>>> >>>>> I saw the H8 bubble project on your website and the video. Great wor= k >>>>> and thanks for the shout out. >>>>> >>>>> >>>>> >>>>> could you change the sbc-85.com blog post link on your website to >>>>> this updated version-- >>>>> >>>>> >>>>> >>>>> >>>>> https://bitsofthegoldenage.org/bubble-memory-makes-a-comeback-for-me-= anyway/ >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> thanks >>>>> >>>>> >>>>> >>>>> craig >>>>> >>>>> >>>>> >>>>> *From:* smbaker@gmail.com >>>>> *Sent:* Saturday, June 3, 2023 1:12 PM >>>>> *To:* SBC-85 >>>>> *Subject:* Re: [Tindie Community] [PM] Order status >>>>> >>>>> >>>>> >>>>> I=E2=80=99m off at a ham radio thing today myself, but I did set my b= ubble >>>>> memory video to premier this morning on YouTube. I=E2=80=99ll see if = I can dig up >>>>> the link later. Basically I built a bubble memory board for the Heath= kit h8 >>>>> and wrote a storage driver for it (heavily leveraging your code!) >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> Sent from my iPhone >>>>> >>>>> >>>>> >>>>> On Jun 3, 2023, at 11:55 AM, SBC-85 wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> Hi Scott, >>>>> >>>>> Thanks, I will send these out when I am back in town Monday. >>>>> >>>>> >>>>> >>>>> Any info on your bubble projects that you want to share? >>>>> >>>>> >>>>> >>>>> Regards >>>>> >>>>> Craig >>>>> >>>>> >>>>> >>>>> On Jun 1, 2023, at 5:03 PM, Scott Baker wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> FYI, ordered another couple BPK-70s and another couple controller ICs= . >>>>> Got at least a couple more good bubble memory ideas left, I think. :) >>>>> >>>>> >>>>> >>>>> I did send a request for the 86 date code ones if possible. >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> >>>>> >>>>> On Wed, May 24, 2023 at 8:25=E2=80=AFPM SBC-85 wro= te: >>>>> >>>>> Yes, exactly. Page size is 64 bytes when ECC is enabled and if ECC is >>>>> disabled then those 3 bytes become data. >>>>> >>>>> >>>>> >>>>> On May 24, 2023, at 3:28 PM, Scott Baker wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> Craig, something that confuses the heck out of me is the 68-byte data >>>>> transfers instead of 64-byte. Reading the datasheet, it just isn't ju= mping >>>>> out at me why this is so, other than maybe it has something to do wit= h bits >>>>> reserved for ECC. >>>>> >>>>> >>>>> >>>>> Everything I read in the datasheets suggest to me that the controller >>>>> implements 2048 pages of 64 bytes each, yet the code clearly transfer= s 68 >>>>> bytes at a time. >>>>> >>>>> >>>>> >>>>> 68-byte pages seem really inconvenient to deal with. >>>>> >>>>> >>>>> >>>>> Since you've implemented this already, you probably know what I'm >>>>> misunderstanding. >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> >>>>> >>>>> On Tue, May 23, 2023 at 11:28=E2=80=AFAM SBC-85 wr= ote: >>>>> >>>>> Congratulations! >>>>> >>>>> >>>>> >>>>> The bubble chips are thankful they are being utilized rather than cas= t >>>>> into a paperweight for some =E2=80=9Ccollector=E2=80=9D >>>>> >>>>> >>>>> >>>>> On May 22, 2023, at 10:17 PM, Scott Baker wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> I think I can claim victory! >>>>> >>>>> >>>>> >>>>> BUBBLE TOOL >>>>> 404040 >>>>> >T >>>>> TESTING PAGE --07FF >>>>> > >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> >>>>> >>>>> On Mon, May 22, 2023 at 9:37=E2=80=AFAM SBC-85 wro= te: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> Despite my best efforts, I have not been able to raise interest in >>>>> multibus. Everyone is enamored with s100 for some reason. So I would >>>>> imagine that there are not a lot of people in the 251. I frequently = watch >>>>> items for a year or more until the price drops. Personally, I think = the >>>>> vintage computer prices is back on its way down. I frequently see thi= ngs >>>>> sitting on eBay for months that are priced incredibly reasonable or e= ven >>>>> underpriced. I know none of that helps when shopping for something v= ery >>>>> specific. >>>>> >>>>> >>>>> >>>>> The Z coil is isolated, so yes, leaving one lead floating is >>>>> sufficient. I reread that part of the manual and am sure I knew much= more >>>>> about the bubbles than I do now, so I trust earlier me. To be honest= , most >>>>> of the documentation and videos I do are to remind future me of detai= ls I >>>>> have forgotten. >>>>> >>>>> >>>>> >>>>> To answer your question about the 7220 testing, current me wasn=E2= =80=99t >>>>> even sure what test software that former me was talking about in the >>>>> manual, so I obviously need to add more specifics about the test rout= ines >>>>> to the users manual. Maybe I have good information in the header of = those >>>>> files, I haven=E2=80=99t looked yet. >>>>> >>>>> >>>>> >>>>> Now that I have refreshed my memory about bubble test , I remember >>>>> spending hours getting that all to work and testing, but I do not >>>>> specifically remember why I had the abort command in that specific sp= ot. >>>>> I dont see any requirement for the abort unless something was hanging= that >>>>> needed to be cleaned up. I would say that if you are reliably gettin= g your >>>>> buffer data back, you can move on and see how the tests with the form= atter >>>>> go. It will be a week or so before I will get a chance test this aga= in. In >>>>> the mean time, keep me posted. >>>>> >>>>> >>>>> >>>>> You have seen this? >>>>> >>>>> <8832481678035279805.jpg> >>>>> >>>>> An OS and SW Tools For The SBC-85 >>>>> >>>>> >>>>> hackaday.io >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> On May 21, 2023, at 11:31 PM, Scott Baker wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> Part of me wants to buy the silly SBC-215. But part of me is more >>>>> reasonable and thinks I should wait for it to sit a few months and se= e if >>>>> the seller comes to his senses... >>>>> >>>>> >>>>> >>>>> Just to clarify, for your schematic, for the 7110AZ it's sufficient >>>>> to only leave #13 disconnected (pin 6 is connected to +12V via 47ohm >>>>> resistor). Want to make sure before I plug in my bubble module tomorr= ow... >>>>> :) >>>>> >>>>> >>>>> >>>>> Also a few questions about the 7220 controller test. I'm testing with >>>>> only the 7220. No 7242 yet. If I execute the following instructions f= rom >>>>> the user manual. >>>>> >>>>> >>>>> >>>>> 1. Fill the FIFO using F >>>>> >>>>> 2. Issue an abort using #9 >>>>> >>>>> 3. Read the FIFO using G >>>>> >>>>> 4. Dump the input buffer >>>>> >>>>> >>>>> >>>>> Then I end up reading back 0xFF from the FIFO. Should step 2 (issue a= n >>>>> abort) be omitted? If I skip that step, then I'm able to read back th= e fill >>>>> message as expected. >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> On Sun, May 21, 2023 at 9:18=E2=80=AFPM SBC-85 wro= te: >>>>> >>>>> 6 and 13 are the Z axis. It looks like they are left unconnected on >>>>> this board. >>>>> >>>>> >>>>> >>>>> On May 21, 2023, at 7:25 PM, Scott Baker wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> It's this one -- https://www.ebay.com/itm/144006137223 -- looks like >>>>> there is a PBA on the front side. >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> >>>>> >>>>> On Sun, May 21, 2023 at 6:37=E2=80=AFPM SBC-85 wro= te: >>>>> >>>>> There are three versions and all require different pinout. The >>>>> original 7110 leadless that goes in a carrier, the 7110A that is the = pinned >>>>> version, and the 7110AZ that is also pinned but has the Z-axis bulk e= rase >>>>> so the pinout is slightly modified. >>>>> >>>>> >>>>> >>>>> I would like to see if the Z version of the 251 utilizes the bulk >>>>> erase or if unused. >>>>> >>>>> >>>>> >>>>> The 251 had many revisions and at least two pcb numbers. Do you know >>>>> what the PCA and PCB numbers are on the board you are looking at? Ma= ybe >>>>> ask seller for additional photos with the board numbers >>>>> >>>>> >>>>> >>>>> Regards >>>>> >>>>> Craig. >>>>> >>>>> >>>>> >>>>> On May 21, 2023, at 6:23 PM, Scott Baker wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> Thanks Craig, I don't think this seller is going to budge. They're >>>>> some large outfit selling what looked primarily like industrial stuff= . I >>>>> got back a "thanks for the inquiry but the price is already good and = we're >>>>> leaving it where it's at". No counter, no offer to negotiate, places = like >>>>> this are often content to let listings sit for years. So unless I wan= t to >>>>> spend 2X what I probably should spend, to get my hands on 5 lower cas= e >>>>> letters in a blue font, I'm stuck. :) >>>>> >>>>> >>>>> >>>>> This SBX-251 looked to have dual-footprints. There was a set of pads >>>>> that look like they would have accommodated the socket. If I did win = the >>>>> lottery and decided I had $200 I was willing to burn, I'd definitely >>>>> reverse engineer the netlist and send the schematic your way. :) >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> >>>>> >>>>> On Sun, May 21, 2023 at 5:36=E2=80=AFPM wrote: >>>>> >>>>> Hi Scott, >>>>> >>>>> >>>>> >>>>> pretty much all the bubbles I have purchased loose have been dead, so >>>>> I generally advise against buying bubbles that are not mounted in a b= oard. >>>>> Bubbles that are mounted in a board seem to fair much better ( as lon= g as >>>>> they were working when taken out of service of course). the board he= lps >>>>> protect them from static and other abuse. That said, I am very cheap= and I >>>>> usually only buy boards /bubbles when the price is low enough that I = am OK >>>>> with it being DOA. >>>>> >>>>> >>>>> >>>>> Interesting that the SBX-251 is the 7110AZ version. I would need to >>>>> check again, but I do not think I have any 251 that are the Z version= of >>>>> the bubble. I am sure that I don=E2=80=99t have schematics for the S= BX-251 with Z >>>>> bubble. >>>>> >>>>> >>>>> >>>>> as for pricing, I did a quick search of my emails to /from ebay >>>>> sellers --- I see where I declined an offer to buy a SBX-251 board f= or >>>>> $88, so when I was in the market for them I thought that was too much= . I >>>>> also see that there was one =E2=80=98buy now=E2=80=99 priced at $45 p= lus shipping but I do >>>>> not know if I bought that one or not. if I didn=E2=80=99t but it, I= probably >>>>> should have because I think that is a good price even considering it = was a >>>>> =E2=80=9Cno-return=E2=80=9D offer. >>>>> >>>>> >>>>> >>>>> So your $200 fellow is a bit too proud of his board for my budget, bu= t >>>>> if it came with a user=E2=80=99s manual or schematics it would pique = my interest >>>>> much more=E2=80=A6 not to the tune of $200 but certainly $100 if it h= ad >>>>> documentation.. and that is only because I do not have any documentat= ion as >>>>> recent as the Z version. >>>>> >>>>> >>>>> >>>>> If you are able to get it for a reasonable price, if you are only >>>>> interested in the bubble, I would be interested in getting the board = off >>>>> you. >>>>> >>>>> >>>>> >>>>> hope that was helpful >>>>> >>>>> >>>>> >>>>> regards >>>>> >>>>> craig >>>>> >>>>> >>>>> >>>>> *From:* Scott Baker >>>>> *Sent:* Sunday, May 21, 2023 4:38 PM >>>>> *To:* SBC-85 >>>>> *Subject:* Re: [Tindie Community] [PM] Order status >>>>> >>>>> >>>>> >>>>> Thanks Craig, >>>>> >>>>> >>>>> >>>>> BTW, I did manage to find an intel-branded 7110AZ on a SBX-251, but >>>>> seller wants ~ $200 on it and isn't interested in offers. I assume th= at 1) >>>>> odds of the memory itself being viable based on your experience are p= oor, >>>>> and 2) the price is too high? What have you paid for such things in t= he >>>>> past? >>>>> >>>>> >>>>> >>>>> Thanks, >>>>> >>>>> Scott >>>>> >>>>> >>>>> >>>>> On Sat, May 20, 2023 at 3:40=E2=80=AFPM SBC-85 wro= te: >>>>> >>>>> Scott, you can modify and redistribute my code to your hearts delight= . >>>>> Please just reference the source in the header. >>>>> >>>>> >>>>> >>>>> Lately Digi-Key has been (evidently using calculated weight/size) >>>>> printing a label and giving a tracking number up to three days before= the >>>>> order is actually fulfilled and ships. >>>>> >>>>> Regards >>>>> >>>>> Craig >>>>> >>>>> >>>>> >>>>> On May 20, 2023, at 2:52 PM, Scott Baker wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> Thanks for looking, Craig. I'll have to keep my eyes out for an >>>>> Intel-branded one. If you do ever turn one up, please let me know. :) >>>>> >>>>> >>>>> >>>>> I'll make sure to send you a pointer to the video once it's out. I'm = a >>>>> little bit delayed this weekend as one of my digikey packages is taki= ng the >>>>> scenic route getting here. Maybe next weekend. >>>>> >>>>> >>>>> >>>>> What are the license restrictions for using/modifying/redistributing >>>>> your code (on a non-commercial / hobbyist project). I see copyright >>>>> headers, but no license restrictions. Ideally I'd make my modificatio= ns and >>>>> push to to my github, but don't want to run afoul of license if you d= on't >>>>> permit redistribution. >>>>> >>>>> >>>>> >>>>> I may be back for another bubble kit or two assuming these ones work >>>>> out well for me -- I have a few projects in the back of my mind. >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> >>>>> >>>>> On Fri, May 19, 2023 at 4:21=E2=80=AFPM wrote: >>>>> >>>>> Hi Scott >>>>> >>>>> >>>>> >>>>> I have about another 10 of the memtech labeled kits. looking through >>>>> the plastic at the date code on the bubble, about half of those with = date >>>>> codes of 86 and the rest date code of 87. I do not know when the bra= nd >>>>> marking transfer occurred, I believe it was sometime in 86 for the 1M= bit >>>>> and maybe a little later for the 4Mbit. Just like the ones I sent y= ou, >>>>> the =E2=80=9Cstatic sensitive=E2=80=9D label is placed right over the= top of the bubble so >>>>> I can not see the branding of the chip itself. if I were a betting m= an, I >>>>> would say they are all memtech. >>>>> >>>>> >>>>> >>>>> look at the back of the ones you have=E2=80=A6. where it says Philipp= ines=E2=80=A6. on >>>>> some of the ones I have there is a lower case intel =E2=80=9Ci=E2=80= =9D just to the left & >>>>> superscript to the =E2=80=9CP=E2=80=9D, maybe even merged with the P = actually. The date >>>>> code and this iPhillipines is visible through the plastic on the back= if >>>>> that turns out to be a hint. >>>>> >>>>> >>>>> >>>>> Of course any 1Mbit in the 7110 leadless will be intel branded, they >>>>> had switched to the 7110A pin version before going over to memtech. = I do >>>>> not have the any of the BPK70 (leadless) kits, only the BPK70A (pinne= d >>>>> version) kits. I am not sure there was a leadless BPK70 kit. >>>>> >>>>> >>>>> >>>>> I do have a couple of BPK-72 which was the bubble prototype kits, I >>>>> think one or both of those are leadless carrier version. They will b= e part >>>>> of my estate if you can wait that long. >>>>> >>>>> >>>>> >>>>> There was a BPK-72 kit in Canada on ebay the other day. it went for >>>>> $445, but not to me. I would really like to know who bought it becau= se I >>>>> would like a bit of information from them. That one had an intel bra= nded >>>>> 7110A bubble. eBay item number:*125767052713 sold a few months >>>>> ago.* >>>>> >>>>> >>>>> >>>>> I have a number of 4Mbit bubbles in some intel bubble PC boards. I >>>>> doubt that I will ever make a 4Mbit version of the SBC-85 bubble boar= d so >>>>> someday I will part ways with most of those. >>>>> >>>>> >>>>> >>>>> I am not the most organized person so it is possible that I have some >>>>> in a box or drawer that I have forgotten about. I also have one or t= wo >>>>> intel iSBX boards and imagine those may be intel branded bubbles. I = do not >>>>> recall if they are 7110 or 7110A bubbles. >>>>> >>>>> >>>>> >>>>> Sorry I can=E2=80=99t be more help. let me know where to watch your = video >>>>> blog, I am always interested in hearing about bubble projects. >>>>> >>>>> >>>>> >>>>> regards >>>>> >>>>> >>>>> >>>>> craig >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> *From:* scott baker >>>>> *Sent:* Friday, May 19, 2023 1:33 PM >>>>> *To:* SBC-85 >>>>> *Subject:* Re: [Tindie Community] [PM] Order status >>>>> >>>>> >>>>> >>>>> If we can find a live one, I=E2=80=99d prefer that to a dead one, but= I can >>>>> still find some use for a dead one =E2=80=94 I=E2=80=99ll be making a= video blog post on >>>>> this at some point, and the intel ones do look nice and I can tell a = little >>>>> bit of a story. >>>>> >>>>> >>>>> >>>>> The three memtech kits you have left on tindie, are they the remainde= r >>>>> of your inventory? >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> Sent from my iPad >>>>> >>>>> >>>>> >>>>> On May 19, 2023, at 12:32 AM, SBC-85 wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> Hi Scott, >>>>> >>>>> >>>>> >>>>> I will look through them to see what I have (unless the sticker makes >>>>> it impossible to see the bubble chip itself without opening the packa= ge). >>>>> >>>>> >>>>> >>>>> Are you looking for dead or alive? I frequently see loose chips on >>>>> eBay, but most or all the loose ones I have purchased have been dead. >>>>> >>>>> >>>>> >>>>> Regards >>>>> >>>>> Craig >>>>> >>>>> >>>>> >>>>> On May 18, 2023, at 11:15 PM, Scott Baker wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> Hey Craig, >>>>> >>>>> >>>>> >>>>> I was wondering if any of the kits you have remaining are known to >>>>> have Intel-braded/labeled bubble memories in them? Alternatively, if = you >>>>> had any loose modules with Intel branding on them, I could be interes= ted in >>>>> picking one up. >>>>> >>>>> >>>>> >>>>> BTW, the package arrived last week, all looks great. >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> >>>>> >>>>> On Fri, May 5, 2023 at 10:41=E2=80=AFPM Scott Baker wrote: >>>>> >>>>> Thanks a lot, and I'm looking forward to it! >>>>> >>>>> >>>>> >>>>> Scott >>>>> >>>>> >>>>> >>>>> On Fri, May 5, 2023 at 9:14=E2=80=AFPM SBC-85 wrot= e: >>>>> >>>>> Thanks for the reminder. Shipped, and tracking number on tindie >>>>> >>>>> >>>>> >>>>> On May 4, 2023, at 9:29 PM, SBC-85 wrote: >>>>> >>>>> =EF=BB=BF >>>>> >>>>> Hi Scott, >>>>> >>>>> >>>>> >>>>> Yes, sorry, I forgot about your order. I will send it out tomorrow an= d >>>>> post the tracking number. >>>>> >>>>> >>>>> >>>>> Regards >>>>> >>>>> >>>>> >>>>> Craig >>>>> >>>>> >>>>> Begin forwarded message: >>>>> >>>>> *From:* scott baker via Tindie Community >>>>> *Date:* May 4, 2023 at 8:25:27 PM PDT >>>>> *To:* craig@sbc-85.com >>>>> *Subject:* *[Tindie Community] [PM] Order status* >>>>> *Reply-To:* scott baker via Tindie Community < >>>>> discuss+7d42f15c87f25561f8c3ec448c69a4ad@tindie.com> >>>>> >>>>> =EF=BB=BF >>>>> >>>>> <~WRD0000.jpg> >>>>> >>>>> *smbaker* >>>>> >>>>> May 5 >>>>> >>>>> Hey Craig, I noticed my order for some bubble memories and other >>>>> goodies hasn=E2=80=99t shipped yet. Just checking in for an ETA, and = to make sure >>>>> you got a notification on the order from tindie. Thanks, Scott. [Sent= from >>>>> Store Page] >>>>> ------------------------------ >>>>> >>>>> *Visit Message* >>>>> >>>>> or reply to this email to respond to *smbaker* >>>>> , >>>>> *ccandrews* >>>>> >>>>> . >>>>> >>>>> To unsubscribe from these emails, *click here* >>>>> >>>>> . >>>>> >>>>> >>>>> >>>>> <~WRD0000.jpg> >>>>> >>>>> >>> >>> --00000000000081916b05fffc5200 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
You might have already seen it, but my second bubble video= is now up --=C2=A0https://www.youtube.com/watch?v=3DsNuio7UfHlc

Scot= t

On Thu, Jun 29, 2023 at 4:27=E2=80=AFPM Scott Baker <smbaker@gmail.com> wrote:
The last 1% was = conquered. I was able to read and write the double-bubble in Heathkit HDOS = without issue. I will probably do a video, but to the average person (i.e. = everyone but you and I!) the experience won't look much different than = the single-bubble board. The CPU requirements are challenging as the bubble= scales -- I wish I had designed my board so that it supported interrupts. = If I do a respin some day...

The secret to the double-bu= bble is what I mentioned about 1 message upthread, namely=C2=A0the need to = initialize with the NFC set to 0001 (as if you're initializing a single= -bubble system) and the Group Select set to the last bubble. If you don'= ;t do that, all sorts of things will go comically wrong (like the two memor= ies becoming disassociated after the next reset).

= Scott

On Tue, Jun 27, 2023 at 9:25=E2=80=AFPM SBC-85 <craig@sbc-85.com> wrote:
=
I remember this now that you said i= t, but would have been hard pressed to recall it at Will.

How did the last 1% go? Looking forward to = a follow up video on the two bubble system.
Did you h= ave to reseed and bubbles using my reseed module?
Reg= ards
Craig

On Jun 18, 2023, at 8:40 PM, Scott Baker <smbaker@gmail.com> wrote:

=
=EF=BB=BFIt took a while, but I think I closed on the remaining 1%.
Here's the only real trick in the manual (in the BPK-72= manual, but not in the 7220 datasheet, not as far as I could tell):
<= div>
"The BMC executes the Initialize command by first i= nterrogating the bubble system
to determine how many FSAs are present, t= hen reading and decoding the bootloop
from each MBM and storing the resu= lts in the corresponding FSA=E2=80=99s bootloop
register. The NFC bit= s in the BLR MSB must be set to 0001 before issuing the
Initialize comma= nd. The MBM GROUP SELECT bits (in the AR) must select the
last MBM in th= e system."

If you mess this up, then vari= ous bad things can happen. For example, I was initializing with BLR_MSB set= properly, but had the BAR selecting the wrong MBM. This caused everything = to appear to work fine until I rebooted, then I would get a plethora of err= ors after the next initialization. Perhaps it was because the bootloop for = the second memory wasn't getting loaded. Anyhow, I fixed=C2=A0the=C2=A0= bug and it's working now.

The CPU requirements= also turned out to scale steeper than expected. Whereas my 2MHz Z80 can ha= ndle a single bubble, my 4MHz Z80 cannot. I had to step the=C2=A0Z80 up to = 8MHz to get it to work. I'm hoping a 5MHz 8085 will also work.

Scott

On Sun, Jun 18, 2023 at 8:18=E2=80=AFPM SBC-8= 5 <craig@sbc-85.co= m> wrote:
Hi Scott,
<= div dir=3D"ltr">No, I have not built a multi-bubble.=C2=A0 So if there are = any hidden tricks I am very interested.=C2=A0 You have no doubt seen intels= design for multiple bubbles.
I may make a STD bus bu= bble board and would have room for a double on that.
=
Regards
Craig

On Jun 18, 2023, at 4:39 PM, Scott = Baker <smbaker@gm= ail.com> wrote:

=
=EF=BB=BF
Behold, the mighty double-bubble= !

Do you have any experience with multiple-bubble design= s? Getting this working gave me a bit of grief, and I think I'm only ab= out 99% there with 1% left to figure out.

Scott

On Tue, Jun 6, 2023 at 10:44=E2=80=AFPM Scott Baker <smbaker@gmail.com> wrote:
=
Gl= ad you found your way there -- I was just about to send you a pointer to th= e video.

I've updated the link to your site. Thanks = a lot for all the help!

Scott

On Tue, Jun 6, = 2023 at 6:22=E2=80=AFPM <craig@sbc-85.com> wrote:

Hi Scott

=C2=A0

<= p class=3D"MsoNormal">I saw the H8 bubble project on your website and the v= ideo.=C2=A0 Great work and thanks for the shout out.

=C2=A0

could you = change the sbc-85.com b= log post link on your website to this updated version--

=C2=A0

https://bitsofthegoldenage.org/bubble-memory-makes= -a-comeback-for-me-anyway/

<= /u>=C2=A0

=C2=A0

thanks

=C2=A0=

craig

=C2=A0

From: smbaker@gmail.com <smbaker@gmail.com>
Sent:= Saturday, June 3, 2023 1:12 PM
To: SBC-85 <craig@sbc-85.com>
Subject:= Re: [Tindie Community] [PM] Order status

=

=C2=A0

I=E2= =80=99m off at a ham radio thing today myself, but I did set my bubble memo= ry video to premier this morning on YouTube. I=E2=80=99ll see if I can dig = up the link later. Basically I built a bubble memory board for the Heathkit= h8 and wrote a storage driver for it (heavily leveraging your code!)

=C2=A0

=

Scott

=

Sent from my iPhone



On Jun 3, 2023, at 11:55 AM, SBC-85 <craig@sbc-85.com> wrote:

=
<= div>

=EF=BB=BF

Hi Scott,=C2=A0

T= hanks, I will send these out when I am back in town Monday.

=C2=A0

Any info on your bubble projects that you want to share?=

=C2=A0

Regards

Craig



On Jun 1, 2023, = at 5:03 PM, Scott Baker <smbaker@gmail.com> wrote:

=EF=BB=BF

FYI, order= ed another couple BPK-70s and another couple controller ICs. Got at least a= couple more good bubble memory ideas left, I think. :)

=C2=A0

I did send a request for the 86 date code ones if possible.=

=C2=A0

=

Scott

=C2=A0

On Wed,= May 24, 2023 at 8:25=E2=80=AFPM SBC-85 <craig@sbc-85.com> wrote:

Yes, exactl= y. Page size is 64 bytes when ECC is enabled and if ECC is disabled then th= ose 3 bytes become data. =C2=A0



On May 24= , 2023, at 3:28 PM, Scott Baker <smbaker@gmail.com> wrote:

=EF=BB=BF

Cr= aig, something that confuses the heck out of me is the 68-byte data transfe= rs instead of 64-byte. Reading=C2=A0the datasheet, it just isn't jumpin= g out at me why this is so, other than maybe it has something to do with bi= ts reserved for ECC.

= =C2=A0

Everything I read in the= datasheets suggest to me that the controller implements 2048 pages of 64 b= ytes each, yet the code clearly transfers 68 bytes at a time.=

=C2=A0

68-byte pages seem really inconvenient to deal with.

=C2=A0

<= /div>

Since you've implemented this already,= you probably know what I'm misunderstanding.

=C2=A0

Scott

= =C2=A0

On Tue, May 23, 2023 at 1= 1:28=E2=80=AFAM SBC-85 <craig@sbc-85.com> wrote:

Congratulations!

=C2=A0

The bubble chips are thankful they are being utilized rat= her than cast into a paperweight for some =E2=80=9Ccollector=E2=80=9D



On May 22, 2023, at 10:17 PM, Scott Baker <= smbaker@gmail.com> wrote:

=EF=BB=BF

=

=C2=A0

=EF=BB=BF

Despite my best eff= orts, I have not been able to raise interest in multibus. Everyone is enamo= red with s100 for some reason.=C2=A0 So I would imagine that there are not = a lot of people in the 251.=C2=A0 I frequently watch items for a year or mo= re until the price drops.=C2=A0 Personally, I think the vintage computer pr= ices is back on its way down. I frequently see things sitting on eBay for m= onths that are priced incredibly reasonable or even underpriced.=C2=A0 I kn= ow none of that helps when shopping for something very specific.<= /u>

=C2=A0

The Z coil is isolated, so yes, leaving one lead fl= oating is sufficient.=C2=A0 I reread that part of the manual and am sure I = knew much more about the bubbles than I do now, so I trust earlier me.=C2= =A0 To be honest, most of the documentation and videos I do are to remind f= uture me of details I have forgotten.

=C2=A0

= =C2=A0To answer your question about the 7220 testing, current me wasn=E2=80= =99t even sure what test software that former me was talking about in the m= anual, so I obviously need to add more specifics about the test routines to= the users manual.=C2=A0 Maybe I have good information in the header of tho= se files, I haven=E2=80=99t looked yet. =C2=A0

=

=C2=A0

Now that I have refreshed my memory about bubble test , I remember sp= ending hours getting that all to work and testing, but I do not specificall= y remember why I had the abort command in that specific spot. =C2=A0 I dont= see any requirement for the abort unless something was hanging that needed= to be cleaned up.=C2=A0 I would say that if you are reliably getting your = buffer data back, you can move on and see how the tests with the formatter = go.=C2=A0 It will be a week or so before I will get a chance test this agai= n. In the mean time, keep me posted.

=C2=A0

Yo= u have seen this?=C2=A0

=C2=A0=

=C2=A0



On May 21, 2023, at 11:31 PM, Scott Baker <smbaker@gmail.com> wrote:

=EF=BB=BF

Part of me wants to buy the silly SBC-215. But part of= me is more reasonable and thinks I should wait for it to sit a few months = and see if the seller comes to his senses...

=C2=A0

J= ust to clarify, for your schematic, for the 7110AZ=C2=A0 it's sufficien= t to only leave #13 disconnected (pin 6 is connected to=C2=A0+12V via 47ohm= resistor). Want to make sure before I plug in my bubble module tomorrow...= :)

=C2=A0

Also a few questions about the 7220 control= ler test. I'm testing with only the 7220. No 7242 yet. If I execute the= following instructions from the user manual.

<= p class=3D"MsoNormal">=C2=A0

1. Fill the FIFO using F

2. Issue an abort using #9

3. Read the FIFO using G

4. Dump the input buffer

=C2=A0

Then I= end up reading back 0xFF from the FIFO. Should step 2 (issue an abort) be = omitted? If I skip that step, then I'm able to read back the fill messa= ge as expected.

= =C2=A0

Scott

<= /div>

=C2=A0

=C2=A0

O= n Sun, May 21, 2023 at 9:18=E2=80=AFPM SBC-85 <craig@sbc-85.com> wrote:<= /p>

6 and 13 a= re the Z axis. It looks like they are left unconnected on this board.



On May 21, 2023, at 7:25 PM, Scott Baker <<= a href=3D"mailto:smbaker@gmail.com" target=3D"_blank">smbaker@gmail.com= > wrote:

=EF=BB=BF=

It's this one --=C2=A0https://www.ebay.com= /itm/144006137223 -- looks like there is a PBA on the front side.

=C2=A0

=

Scott

=C2=A0

On Sun, May = 21, 2023 at 6:37=E2=80=AFPM SBC-85 <craig@sbc-85.com> wrote:

There are three versi= ons and all require different pinout. The original 7110 leadless that goes = in a carrier, the 7110A that is the pinned version, and the 7110AZ that is = also pinned but has the Z-axis bulk erase so the pinout is slightly modifie= d.=C2=A0

=C2=A0

I would like to see if the Z ver= sion of the 251 utilizes the bulk erase or if unused.

=C2=A0

The 251 had many revisions and at least two pcb numbers.=C2= =A0 Do you know what the PCA and PCB =C2=A0numbers are on the board you are= looking at? Maybe ask seller for additional photos with the board numbers<= u>

=C2=A0

=

Regards

Craig.



On May 21, 2023,= at 6:23 PM, Scott Baker <smbaker@gmail.com> wrote:

=EF=BB=BF

Thanks Cr= aig, I don't think this seller is going to budge. They're some larg= e outfit selling what looked primarily like industrial stuff. I got back a = "thanks for the inquiry but the price is already good and we're le= aving it where it's at". No counter, no offer to negotiate, places= like this are often content to let listings sit for years. So unless I wan= t to spend 2X what I probably should spend, to get my hands on 5 lower case= letters in a blue font, I'm stuck. :)

=C2=A0

Th= is SBX-251 looked to have dual-footprints. There was a set of pads that loo= k like they would have accommodated the socket. If I did win the lottery an= d decided I=C2=A0had $200 I was=C2=A0willing to burn, I'd definitely re= verse engineer the netlist and send the schematic your way. :)

=C2=A0

Scott

=C2=A0

On Sun, May 21, 2023 at 5:36=E2=80=AFPM <craig@sbc-85.com> wrote:

Hi= Scott,

=C2=A0

pretty much all the bubbles I have purchased loose have= been dead, so I generally advise against buying bubbles that are not mount= ed in a board.=C2=A0 Bubbles that are mounted in a board seem to fair much = better ( as long as they were working when taken out of service of course).= =C2=A0 the board helps protect them from static and other abuse.=C2=A0 That= said, I am very cheap and I usually only buy boards /bubbles when the pric= e is low enough that I am OK with it being DOA.

=C2=A0

Interesting t= hat the SBX-251 is the 7110AZ version.=C2=A0 I would need to check again, b= ut I do not think I have any 251 that are the Z version of the bubble.=C2= =A0 I am sure that I don=E2=80=99t have schematics for the SBX-251 with Z b= ubble.

=C2=A0

as for pricing, I did a quick search of my emails to /fr= om ebay sellers ---=C2=A0 I see where I declined an offer to buy a SBX-251 = board for $88, so when I was in the market for them I thought that was too = much.=C2=A0 I also see that there was one =E2=80=98buy now=E2=80=99 priced = at $45 plus shipping but I do not know if I bought that one or not. =C2=A0= =C2=A0if I didn=E2=80=99t but it, I probably should have because I think th= at is a good price even considering it was a =E2=80=9Cno-return=E2=80=9D of= fer.

=C2=A0

So your $200 fellow is a bit too proud of his board for my= budget, but if it came with a user=E2=80=99s manual or schematics it would= pique my interest much more=E2=80=A6 not to the tune of $200 but certainly= $100 if it had documentation.. and that is only because I do not have any = documentation as recent as the Z version.

=C2=A0

If you are able to ge= t it for a reasonable price, if you are only interested in the bubble, I wo= uld be interested in getting the board off you.

=C2=A0

hope that was= helpful

=C2=A0

regards

craig<= u>

=C2=A0

From: Scott Baker <s= mbaker@gmail.com>
Sent: Sunday, May 21, 2023 4:38 PM
<= b>To: SBC-85 <= craig@sbc-85.com>
Subject: Re: [Tindie Community] [PM] Ord= er status

=C2=A0

Thanks Craig,

=C2=A0

= BTW, I did manage to find an intel-branded 7110AZ on a SBX-251, but seller = wants ~ $200 on it and isn't interested in offers. I assume that 1) odd= s of the memory itself being viable based on your experience are poor, and = 2) the price is too high? What have you paid for such things in the past?

=C2=A0

<= /div>

Thanks,

Scott

= =C2=A0

On Sat, May 20, 20= 23 at 3:40=E2=80=AFPM SBC-85 <craig@sbc-85.com> wrote:

Scott, you can modify and redistribut= e my code to your hearts delight. Please just reference the source in the h= eader.

=C2=A0<= /u>

Lately Digi-Key has been (evidentl= y using calculated weight/size) printing a label and giving a tracking numb= er up to three days before the order is actually fulfilled and ships. =C2= =A0

Regards

=C2=A0Craig

<= div>

=C2=A0

On May 20, 2023, at 2:52 PM, Scott Bak= er <smbaker@gmail= .com> wrote:

=EF=BB=BF=

Thanks for looking, Craig. I&= #39;ll have to keep my eyes out for an Intel-branded one. If you do ever tu= rn one up, please let me know. :)

=C2=A0

I'll make= sure to send you a pointer to the video once it's out. I'm a littl= e bit delayed this weekend as one of my digikey packages is taking the scen= ic route getting here. Maybe next weekend.

=C2=A0

What are the license restrictions for using/modifying/redistributing your= code (on a non-commercial / hobbyist project). I see copyright headers, bu= t no license restrictions. Ideally I'd make my modifications and push t= o to my github, but don't want to run afoul of license if you don't= permit redistribution.

= =C2=A0

I may be back for= another bubble kit or two assuming these ones work out well for me -- I ha= ve a few projects in the back of my mind.

=C2=A0

Scott

=C2=A0=

On Fri, May 19, 2023 at 4:21=E2=80= =AFPM <craig@sbc-8= 5.com> wrote:

Hi Scott

=C2=A0=

I have about another 10 of the mem= tech labeled kits.=C2=A0 looking through the plastic at the date code on th= e bubble, about half of those with date codes of 86 and the rest date code = of 87.=C2=A0 I do not know when the brand marking transfer occurred, I beli= eve it was sometime in 86 for the 1Mbit and maybe a little later for the 4M= bit.=C2=A0 =C2=A0Just like the ones I sent you, the =E2=80=9Cstatic sensiti= ve=E2=80=9D label is placed right over the top of the bubble so I can not s= ee the branding of the chip itself.=C2=A0 if I were a betting man, I would = say they are all memtech.

=C2=A0=

look at the back of the ones you have= =E2=80=A6. where it says Philippines=E2=80=A6. on some of the ones I have t= here is a lower case intel =E2=80=9Ci=E2=80=9D just to the left & super= script to the =E2=80=9CP=E2=80=9D, maybe even merged with the P actually.= =C2=A0 =C2=A0The date code and this iPhillipines is visible through the pla= stic on the back if that turns out to be a hint.

=C2=A0

Of course any= 1Mbit in the 7110 leadless will be intel branded, they had switched to the= 7110A pin version before going over to memtech.=C2=A0 I do not have the an= y of the BPK70 (leadless) kits, only the BPK70A (pinned version) kits.=C2= =A0 I am not sure there was a leadless BPK70 kit.=C2=A0 =C2=A0

=C2=A0

= I do have a couple of BPK-72 which was the bubble prototype kits, I think o= ne or both of those are leadless carrier version.=C2=A0 They will be part o= f my estate if you can wait that long.

=C2=A0

There was a BPK-72 kit i= n Canada on ebay the other day.=C2=A0 it went for $445, but not to me.=C2= =A0 I would really like to know who bought it because I would like a bit of= information from them.=C2=A0 That one had an intel branded 7110A bubble.= =C2=A0=C2=A0 eBay it= em number:125= 767052713=C2=A0 sold a few months ago.

=C2=A0

I have a numb= er of 4Mbit bubbles in some intel bubble PC boards.=C2=A0 I doubt that I wi= ll ever make a 4Mbit version of the SBC-85 bubble board so someday I will p= art ways with most of those.

=C2=A0=

I am not the most organized person= so it is possible that I have some in a box or drawer that I have forgotte= n about.=C2=A0 I also have one or two intel iSBX boards and imagine those m= ay be intel branded bubbles.=C2=A0 I do not recall if they are 7110 or 7110= A bubbles.

=C2=A0

=

Sorry I can=E2=80=99t be more help.=C2=A0 let me kno= w where to watch your video blog, I am always interested in hearing about b= ubble projects.

=C2=A0

regards

=C2=A0

craig

=C2=A0

=C2=A0=

=C2=A0

From:= scott baker <smbaker@gmail.com>
Sent: Friday, May 19, 2023 1:33 PMTo: SBC-85 <craig@sbc-85.com>
Subject: Re: [Tindie Community] [PM] O= rder status

=C2=A0

If we can find a live one, I=E2=80=99d = prefer that to a dead one, but I can still find some use for a dead one =E2= =80=94 I=E2=80=99ll be making a video blog post on this at some point, and = the intel ones do look nice and I can tell a little bit of a story.<= u>

=C2=A0

The three memtech kits you have left on tindie, are th= ey the remainder of your inventory?

=C2=A0

Scott

= Sent from my iPad

=C2=A0

On May 19, 2023, at 12:32 AM, SBC-85 <craig@sbc-85.com> wrote:

<= /blockquote>

=EF=BB=BF

Hi Scott,

=C2=A0

I will look through them = to see what I have (unless the sticker makes it impossible to see the bubbl= e chip itself without opening the package).

=C2=A0

Are you looking for dead or alive?=C2=A0 I frequently see loose chips on= eBay, but most or all the loose ones I have purchased have been dead.

=C2=A0

Regards

Craig

=C2=A0

On May 18, 2023, at 11:15 PM, Scott Baker <smbaker@gmail.com> wrote:=

=EF=BB=BF

Hey Craig,

=C2= =A0

I was wondering if a= ny of the kits you have remaining are known to have Intel-braded/labeled bu= bble memories in them? Alternatively, if you had any loose modules with Int= el branding on them, I could be interested in picking one up.=

=C2=A0

BTW, the package arrived last week, all looks great.

=C2=A0

<= /div>

Scott

=C2=A0

On= Fri, May 5, 2023 at 10:41=E2=80=AFPM Scott Baker <smbaker@gmail.com> wrote:

Thanks a lot,=C2=A0= and I'm looking forward to it!

=C2=A0

Scott=

=C2=A0

=

On Fri, May 5, 2023 at 9:14=E2=80=AFPM SBC-85 &= lt;craig@sbc-85.com> wrote:

=C2=A0

On May 4, = 2023, at 9:29 PM, SBC-85 <craig@sbc-85.com> wrote:

=EF=BB=BF

Hi Scott,

=C2=A0

<= /div>

Yes, sorry, I forgot about your order. I w= ill send it out tomorrow and post the tracking number.

=C2=A0

Regards

= =C2=A0

Craig


Begin forwarded message:

From: scott baker via Tindie = Community <do= notreply@tindie.com>
Date: May 4, 2023 at 8:25:27 PM PDTTo: craig@sb= c-85.com
Subject: [Tindie Community] [PM] Order status=
Reply-To: scott baker via Tindie Community <d= iscuss+7d42f15c87f25561f8c3ec448c69a4ad@tindie.com>

=

=EF=BB=BF

<~WRD0000.jpg>

<= /div>

smbaker
May 5

<= div>

Hey Craig, I noticed my order for some bubb= le memories and other goodies hasn=E2=80=99t shipped yet. Just checking in = for an ETA, and to make sure you got a notification on the order from tindi= e. Thanks, Scott. [Sent from Store Page]

=

Visit Messag= e or reply to this em= ail to respond to smbaker= , ccandrews.=

To u= nsubscribe from these emails, click here.

= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0

<~WRD0000.jpg><= u>

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