Return-Path: Delivered-To: craig@sbc-85.com Received: from gator4254.hostgator.com by gator4254.hostgator.com with LMTP id YFlJJYoqCWW4PAUAcizydQ (envelope-from ) for ; Mon, 18 Sep 2023 23:58:50 -0500 Return-path: Envelope-to: craig@sbc-85.com Delivery-date: Mon, 18 Sep 2023 23:58:50 -0500 Received: from mail-pl1-f174.google.com ([209.85.214.174]:48154) by gator4254.hostgator.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.96) (envelope-from ) id 1qiSoz-001TIY-3C for craig@sbc-85.com; Mon, 18 Sep 2023 23:58:50 -0500 Received: by mail-pl1-f174.google.com with SMTP id d9443c01a7336-1c0c6d4d650so47448345ad.0 for ; Mon, 18 Sep 2023 21:58:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cpushack-com.20230601.gappssmtp.com; s=20230601; t=1695099518; x=1695704318; darn=sbc-85.com; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=2PRT1hKoimbB6A/LJ99fkxCu8oM2+OD3qFhVwpVfPYM=; b=NcmTRg5x6yVO+J8zww1p1uUNHdcl0ysEJfFmgEf4XqcItvMJu71gX7EZ78ypeqVz3A yHj/DcO+mzmrBsRwdfI6AWkWEHnnr+QacGvpBD+Xb7RUbg5R5z25PMCCyxrpPWo3NUOC ZMjKWqUWbaxuxwqMlgglDhpEkRozK6L2/iKn0kcWMG+teHkBJlzFSWxLV4BpjuYGsoy6 xfvBBrB+QWbJltNyJAA4PO2+aWK8lmSsJOPznjcWsTQHOeL3XZGpKCobYCLy7E1H/RU3 E0SVReNxKXId5zEzDOHMsVYrKE3BKxCMzKHNOXdWLxP5ztP1LD+LlG8C35XoGIEOsVtb eXCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695099518; x=1695704318; 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=2PRT1hKoimbB6A/LJ99fkxCu8oM2+OD3qFhVwpVfPYM=; b=tKAJUZUirUQYhv1seUDSPct2RW9gilzEWq9gl5ZDYkBuwc2wl8B9nRihpVrEgg+hcE ONWpm1zdON6n56ZH/2wCAqUWUQQP0DOKUG0FNzmO3cmscWz1k6pTN5gM4002TkZUTxqD eteHoljFqfWsYIXazbCTLW4PoTMXPAKXRJICu7xfp9VtnnJBQ1QbQVzXOvc4roSQwr7c eAzAUxInojsZYRjHjgaBWzSWmuw2H2RiZFkfvhaDe7T4DajIEfE0UliZtMoLmXaB043R b2VdlBB4xn7Bjlwydsj4Cm/AmNmvd/2jt1lullyQPdCwJo6Xw132PCFQH8KmgIPxGZIb h+YQ== X-Gm-Message-State: AOJu0YxE9TLg37UgdG6wO/WgMvwA6ucBVT4OI4hldLYwgUl43ji4U31S Yn4hWjjz0lH3SbO4gtyFkhIMLdnNpuFhS3/a3RC4A4cBhNx1zh1y X-Google-Smtp-Source: AGHT+IHkKn7FMByTbR5iQpbUgXXNF6/1KBPcHp3a9uDpd7WS6WXDulQWjBIkCAOgYU6BrqDMUGvV4wuqc6Pl1v9AfjM= X-Received: by 2002:a17:902:ab5d:b0:1c3:758d:32de with SMTP id ij29-20020a170902ab5d00b001c3758d32demr11505213plb.12.1695099518248; Mon, 18 Sep 2023 21:58:38 -0700 (PDT) MIME-Version: 1.0 References: <8ECBED5C-6E21-4B60-884A-896073627788@sbc-85.com> In-Reply-To: <8ECBED5C-6E21-4B60-884A-896073627788@sbc-85.com> From: John Culver Date: Mon, 18 Sep 2023 21:58:28 -0700 Message-ID: Subject: Re: intel 2113 RAMs To: SBC-85 Content-Type: multipart/alternative; boundary="000000000000a5028b0605af1c9a" X-Spam-Status: No, score=-0.5 X-Spam-Score: -4 X-Spam-Bar: / X-Spam-Flag: NO --000000000000a5028b0605af1c9a Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable The standard production one I have is A0L (the ES ones were A0H) John Culver Curator The CPU Shack Museum john@cpushack.com www.cpushack.com On Sun, Sep 17, 2023 at 11:45=E2=80=AFAM SBC-85 wrote: > I am just rounding them up so can use either one but will stick with AOH > since they seem to be more prevalent. Whatever yield problem intel was > having must have been in the low half. Have you noticed that or did I jus= t > accidentally start a rumor? > > I will take the one standard production AOH you have. > > On Sep 17, 2023, at 10:28 AM, John Culver wrote: > > =EF=BB=BF > I have 2 Engineering Samples as well, but the are the opposite set up (A0= H > vs A0L) and kinda spendy > John Culver > Curator > The CPU Shack Museum > john@cpushack.com > www.cpushack.com > > > On Sat, Sep 16, 2023 at 3:40=E2=80=AFPM wrote: > >> Hi John, >> >> >> >> I need some intel 2113 SRAMs. qty 4 to get a board populated. I see yo= u >> have one listed, that is all you have available? >> >> >> >> *From:* John Culver >> *Sent:* Saturday, February 4, 2023 7:30 AM >> *To:* SBC-85 >> *Subject:* Re: MCS-8 tester >> >> >> >> yaah, I keep some in stock if needed >> >> John Culver >> Curator >> The CPU Shack Museum >> john@cpushack.com >> www.cpushack.com >> >> >> >> >> >> On Sat, Feb 4, 2023 at 1:36 AM SBC-85 wrote: >> >> Yes, it would be good to have a tester. The 4289s are hard to come by >> also unless you have a supplier. >> >> >> >> On Feb 4, 2023, at 12:10 AM, John Culver wrote: >> >> =EF=BB=BF >> >> It does not unfortunately, it used a 4289, which was the replacement for >> the 4008/4009 >> >> I dont have a good way to test them, though seems maybe be good to make >> one >> >> John Culver >> Curator >> The CPU Shack Museum >> john@cpushack.com >> www.cpushack.com >> >> >> >> >> >> On Fri, Feb 3, 2023 at 10:41 PM SBC-85 wrote: >> >> Hi John, >> >> Can your MCS-4 tester test the 4008 and 4009? Or do you have a good way >> to test them? >> >> >> >> Regards >> >> >> >> Craig >> >> >> >> On Sep 26, 2022, at 12:13 PM, John Culver wrote: >> >> =EF=BB=BF >> >> In the tester the CPU S2 output is only connected to an input pin of the >> GAL22V10. The GAL is CMOS technology and the input has an internal pull = up, >> so it's not a heavy load. >> I do not think my tester would detect this problem unfortunately >> >> John Culver >> Curator >> The CPU Shack Museum >> john@cpushack.com >> www.cpushack.com >> >> >> >> >> >> On Fri, Sep 23, 2022 at 5:07 PM wrote: >> >> Hi John, >> >> >> >> One of my current projects is a reproduction intellect 8 board set. I >> have to use my MIL MOD8 to see if my 8008 CPUs are good and I just came >> across one that worked OK in the MIL MOD8 but is flakey in my intellect = 8. >> It turns out the S2 output is weak so sometimes the 8008 has trouble >> generating a T1I state and coming out of interrupt. >> >> >> >> how thoroughly does your MCS-8 board test outputs? would it catch this >> sort of problem with a marginal output pin? if so, I think I need one. >> >> >> >> regards >> >> >> >> craig >> >> >> >> *From:* John Culver >> *Sent:* Tuesday, July 5, 2022 9:42 AM >> *To:* SBC-85 >> *Subject:* Re: Bubble kits >> >> >> >> yup all good, >> >> Intel didnt 'make' many 2704s and I havent seen one that isnt a 2708 die= , >> I really doubt they MADE a separate die for one, and likely only made th= e >> 2704 to deal with lower then wanted yields of the 2708 die >> >> There wasnt a huge marker for a 4k EPROM, and not many others mae them >> (Intersil/Harris did but in different configurations) >> >> >> John Culver >> Curator >> The CPU Shack Museum >> john@cpushack.com >> www.cpushack.com >> >> >> >> >> >> On Tue, Jul 5, 2022 at 2:19 AM SBC-85 wrote: >> >> Hi John >> >> >> >> Thanks for the feedback on tindie, I hope you are having fun with the >> bubbles >> >> >> >> Quick question.=E2=80=94Have you ever seen an intel 2704 that wasn=E2=80= =99t actually a >> 2708 die? Did intel ever make a 2704 die do you think? >> >> >> >> >> >> Regards >> >> >> >> Craig >> >> >> >> >> >> >> >> On Jun 20, 2022, at 11:40 AM, John Culver wrote: >> >> =EF=BB=BF >> >> Yup came in good condition >> >> all 5 of them had memtech branded 7110s (was half expecting an Intel to >> show up in one of them haha) >> >> The scope I have works well for analysis but I dont have a camera set up >> for it unfortunately >> >> I'll have to figure out feedback on tindie lol was my first time using i= t >> >> the 3870 is a neat chips, I should write something on it sometime, prett= y >> much a Microcontroller version of the F8, and they made a UV-EPROM based >> one too. the 3870 turned out to be very popular in Euro telecoms, being >> made by Telefunken a lot (and tons by Mostek/SGS too) >> >> John Culver >> Curator >> The CPU Shack Museum >> john@cpushack.com >> www.cpushack.com >> >> >> >> >> >> On Sun, Jun 19, 2022 at 9:57 AM SBC-85 wrote: >> >> Hi John >> >> It looks like these bubble kits have been delivered. Please let me know >> if there are any issues. Positive feedback on tindie would be appreciat= ed >> >> Regards >> >> Craig >> >> > On Jun 16, 2022, at 4:46 PM, John Culver wrote: >> > >> > =EF=BB=BFThanks! Some are for my friends. I am a collector so like ol= d >> processors and related things. I run cpushack.com if ya want to check it >> out >> > >> > Sent from my iPhone >> > >> >> On Jun 16, 2022, at 1:34 PM, SBC-85 wrote: >> >> >> >> =EF=BB=BFHi John, I will box these bubble kits up and take to the pos= t office >> tomorrow. If I may ask, what do you plan on doing with these? Not exac= tly >> a hot market for bubbles, I think my SBC-85 bubble board is the only >> current thing that utilizes these. Since these have been sealed, I can= =E2=80=99t >> imagine there would be any problems with the seed bubble. >> >> >> >> Do you have any intel 4 bit or early 8 bit you are interested in >> trading? I am looking for pro-log 04/40 and 8008. >> >> >> >> Regards >> >> >> >> Craig >> >> --000000000000a5028b0605af1c9a Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
The standard production one I have is A0L (the ES ones wer= e A0H)

John Culver
Curator
The CPU Shac= k Museum
john@cpu= shack.com
www.= cpushack.com


=
On Sun, Sep 17, 2023 at 11:45=E2=80= =AFAM SBC-85 <craig@sbc-85.com&g= t; wrote:
I am just rounding them= up so can use either one but will stick with AOH since they seem to be mor= e prevalent.=C2=A0 Whatever yield problem intel was having must have been i= n the low half. Have you noticed that or did I just accidentally start a ru= mor?

I will take the one s= tandard production AOH you have.=C2=A0

On Sep 17, 2023, at 10:28 AM, John Culver <john@cpushack.com> wrote:<= br>
=EF=BB= =BF
I have 2 Engineering Samples as well, but the are the o= pposite set up (A0H vs A0L) and kinda spendy
John Culver
Curator
The CPU Shack Museum
john@cpushack.comwww.cpushack.com


On Sat, Sep 16, 2023 at 3:40=E2=80=AFPM <craig@sbc-85.com> wro= te:

Hi John,

=C2=A0

I need some i= ntel 2113 SRAMs.=C2=A0 qty 4 to get a board populated.=C2=A0 I see you have= one listed, that is all you have available?

=C2=A0

From: John Culver <john@cpushack.com>
Sent: Saturday, February 4, 2023 7:30 AM
To: SBC-85 <craig@sbc-85.com><= br>Subject: Re: MCS-8 tester

=C2=A0

yaah, I keep som= e in stock if needed

John Culver
Curator
The CPU Shack Museum
john@cpushack.com
www.cpushack.com

=C2=A0

=C2=A0

On Sat, Feb 4, 2023 at 1:36 AM SBC-85 <craig@sbc-85.com> wrote:

Yes, it wou= ld be good to have a tester. The 4289s are hard to come by also unless you = have a supplier.


<= p class=3D"MsoNormal" style=3D"margin-bottom:12pt">On Feb 4, 2023, at 12:10= AM, John Culver <john@cpushack.com> wrote:

=EF=BB=BF

It does not unfor= tunately, it used a 4289, which was the replacement for the 4008/4009

I dont have a good way to test them= , though seems maybe be good to make one

John Culver
Curator
The CPU Shack M= useum
john@cpusha= ck.com
www.cpu= shack.com

= =C2=A0

=C2=A0

On Fri, Feb 3, 2023 at 10:41 PM SBC-85 &l= t;craig@sbc-85.com> wrote:

Regards

=

=EF=BB=BF

In the teste= r the CPU S2 output is only connected to an input pin of the GAL22V10. The = GAL is CMOS technology and the input has an internal pull up, so it's n= ot a heavy load.
I do not think my tester would detect this problem unfo= rtunately

John Culver
Curator
The CPU Shack Museum
john@cpushack.com
www.cpushack.com

=

=C2=A0

=C2=A0

On = Fri, Sep 23, 2022 at 5:07 PM <craig@sbc-85.com> wrote:

Hi John,=

=C2=A0

O= ne of my current projects is a reproduction intellect 8 board set.=C2=A0 I = have to use my MIL MOD8 to see if my 8008 CPUs are good and I just came acr= oss one that worked OK in the MIL MOD8 but is flakey in my intellect 8.=C2= =A0 It turns out the S2 output is weak so sometimes the 8008 has trouble ge= nerating a T1I state and coming out of interrupt.

=C2=A0

how thoroughl= y does your MCS-8 board test outputs?=C2=A0 would it catch this sort of pro= blem with a marginal output pin?=C2=A0 if so, I think I need one.=

=C2=A0

regards

=C2=A0

=

craig

=C2=A0=

From: John Culver <john@cpushack.com>
Sent: Tuesd= ay, July 5, 2022 9:42 AM
To: SBC-85 <craig@sbc-85.com>
Subject: Re= : Bubble kits

=C2=A0

yup all good,

Intel didnt=C2=A0'make' many 2704s and I haven= t seen one that isnt a 2708 die, I really doubt they MADE a separate die fo= r one, and likely only made the 2704 to deal with lower then wanted yields = of the 2708 die

There wa= snt a huge marker for a 4k EPROM, and not many others mae them (Intersil/Ha= rris did but in different configurations)


John Culver
Curator
The CPU Shack Museum
john@cpushack.com
www.cpushack.com<= u>

=C2=A0

=

=C2=A0

On Tue, Jul 5, 2022 at 2:19 AM SBC-85 <craig@sbc-85.com> wrote:

Hi John=

=C2=A0

Thanks for the feedback on tindie, I hope you are = having fun with the bubbles

=C2=A0

Quick questio= n.=E2=80=94Have you ever seen an intel 2704 that wasn=E2=80=99t actually a = 2708 die?=C2=A0 Did intel ever make a 2704 die do you think?<= /p>

=C2=A0

=C2=A0

Regards

=C2=A0=

Craig

<= div>

=C2=A0

=C2=A0

=C2=A0

On Jun 20, 2022, at 11:40 AM, John Culver <john@cpushack.com> wrote:

=EF=BB=BF

Yup came in good condition

all 5 of them had memtech branded 7110s (was half expecting an = Intel to show up in one of them haha)

The scope I have works well for analysis but I dont have a c= amera set up for it unfortunately

I'll have to figure out feedback on tindie lol was my first t= ime using it

the 3870 is= a neat chips, I should write something on it sometime, pretty much a Micro= controller version of the F8, and they made a UV-EPROM based one too.=C2=A0= the 3870 turned out to be very popular in Euro telecoms, being made by Tel= efunken a lot (and tons by Mostek/SGS too)
<= /p>

John Culver
Curator
The CPU Shack= Museum
john@cpus= hack.com
www.c= pushack.com

=C2=A0<= u>

=C2=A0

On Sun, Jun 19, 2022 at 9:57 AM SBC-85 &l= t;craig@sbc-85.com> wrote:

Hi John

It looks like these bubble kits ha= ve been delivered. Please let me know if there are any issues.=C2=A0 Positi= ve feedback on tindie would be appreciated

Regards

Craig
=
> On Jun 16, 2022, at 4:46 PM, John Culver <john@cpushack.com> wrote:
> =
> =EF=BB=BFThanks!=C2=A0 Some are for my friends. I am a collector s= o like old processors and related things. I run cpushack.com if ya want to check it out
>=
> Sent from my iPhone
>
>> On Jun 16, 2022, at 1:34= PM, SBC-85 <craig= @sbc-85.com> wrote:
>>
>> =EF=BB=BFHi John, I wil= l box these bubble kits up and take to the post office tomorrow.=C2=A0 If I= may ask, what do you plan on doing with these?=C2=A0 Not exactly a hot mar= ket for bubbles, I think my SBC-85 bubble board is the only current thing t= hat utilizes these. Since these have been sealed, I can=E2=80=99t imagine t= here would be any problems with the seed bubble.
>>
>> D= o you have any intel 4 bit or early 8 bit you are interested in trading?=C2= =A0 I am looking for pro-log 04/40 and 8008.=C2=A0
>>
>>= ; Regards
>>
>> Craig

--000000000000a5028b0605af1c9a--