=EF=BB=BF

I didnt, I probably got= them off a board, so dates likely the same, I dont have a system to test th= em in though

John Culver
Curator
The CPU Shack= Museum
john@cpush= ack.com
www.cpu= shack.com

On Sun, Sep 24, 2023 at 6:21=E2=80=AFPM <craig@sbc-85.com> wrote:

Hi John, <= u>

Did you happen to get the date codes of all= the ones you had? And did you happen to actually test any of them on the =E2= =80=98bad=E2=80=99 half?

&nbs= p;

Regards

craig

= From: John Culver <john@cpushack.com>
Sent: Tuesday, September 19, 20= 23 7:59 PM
To: craig@sbc-85.com
Subject: Re: intel 2113 RAMs=

Shipped: 92001903332000300005540807

John Culver
Curator
The CPU S= hack Museum
john@c= pushack.com
www= .cpushack.com

On Tue, Sep 19, 2023 at 11:00=E2=80=AFAM <craig@sbc-85.com> w= rote:

Done. Thanks.
<= /u>
From: John Culver <john@cpushack.com>
Sent: Tuesday, Sept= ember 19, 2023 9:39 AM
To: SBC-85 <craig@sbc-85.com>
Subject: Re: in= tel 2113 RAMs
=
$14 to john@cpushack.com
<= /p>
John Culver
Curator
The CPU Shack M= useum
john@cpushac= k.com
www.cpush= ack.com

<= p class=3D"MsoNormal">On Mon, Sep 18, 2023 at 10:46=E2=80=AFPM SBC-85 <craig@sbc-85.com>= wrote:
I= noticed that later when I went back to your site. I should take it an= yway because I don=E2=80=99t know which flavor I will find enough of first.<= u>

<= /div>
Let me know the total and your PayPal.
Thanks
Craig

On Sep 18, 2023, at 9:58 PM, John Culver <john@cpushack.com> wrote:
=EF=BB=BF
The standard production one I have is A0L (the ES ones w= ere A0H)

<= /u>
John Culver
Curator
The= CPU Shack Museum
= john@cpushack.com
www.cpushack.com
=
<= /u>
On Sun, Sep 17, 2023 at 11:45=E2=80=AF= AM SBC-85 <craig@sb= c-85.com> wrote:
I am just rounding them up so can use either one but will sti= ck with AOH since they seem to be more prevalent. Whatever yield probl= em intel was having must have been in the low half. Have you noticed that or= did I just accidentally start a rumor?

I w= ill take the one standard production AOH you have.

On Sep 17, 2023, at 10:28 AM, John C= ulver <john@cpusha= ck.com> wrote:
=EF=BB=BF<= /u>
I have 2 Engineering Samples as we= ll, but the are the opposite set up (A0H vs A0L) and kinda spendy<= /u>
John Culver
Curator
The C= PU Shack Museum
jo= hn@cpushack.com
www.cpushack.com
&n= bsp;

On Sat, Sep 16, 2023 at 3:40=E2=80=AFP= M <craig@sbc-85.com= > wrote:
Hi John,

I need some intel 2113 SRAMs. qty 4 to= get a board populated. I see you have one listed, that is all you hav= e available?

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

yaah, I keep some in stock if needed
=
John Culver
Curator
Th= e CPU Shack Museum
john@cpushack.com
www.cpushack.com

On Sat, Feb 4, 2023 at 1:36 AM SBC-85 <= ;craig@sbc-85.com&= gt; 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 <john@cpushack.com> wrote:
=EF=BB=BF
It does not unfortunately, it used a 4289, which was the replace= ment for the 4008/4009
I dont h= ave a good way to test them, though seems maybe be good to make one
John Culver
C= urator
The CPU Shack Museum
john@cpushack.com
www.cpushack.com

= ;
On Fri, Feb 3, 2023 at 1= 0:41 PM SBC-85 <cra= ig@sbc-85.com> wrote:
Hi John,
Can your MCS-4 tester test the 4008 and 4009? Or do you have a good way t= o test them?

Regards

Craig

= On Sep 26, 2022, at 12:13 PM, John Culver <john@cpushack.com> wrote:
<= /blockquote>
=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 pro= blem unfortunately
John Culver
Curator
The CPU Shack Museum
john@cpushack.com
www.cpushack.com

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

One of my current= projects is a reproduction intellect 8 board set. I have to use my MI= L MOD8 to see if my 8008 CPUs are good and I just came across one that worke= d 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 a= nd coming out of interrupt.

how thoroughly does your MCS-8 board t= est outputs? would it catch this sort of problem with a marginal outpu= t pin? if so, I think I need one.

regards
=

craig<= u>

From: Joh= n Culver <john@cpu= shack.com>
Sent: Tuesday, July 5, 2022 9:42 AM
To: SBC-85 <craig@sb= c-85.com>
Subject: Re: Bubble kits
<= p class=3D"MsoNormal">
yu= p all good,
Intel didnt 'm= ake' many 2704s and I havent seen one that isnt a 2708 die, I really doubt t= hey MADE a separate die for one, and likely only made the 2704 to deal with l= ower 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)

<= div>
John Culver
Curator
The CPU Shack Muse= um
john@cpushack.c= om
www.cpushack= .com

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

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

Quick ques= tion.=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?<= /p>

Regards
=
Craig
=

On Ju= n 20, 2022, at 11:40 AM, John Culver <john@cpushack.com> wrote:
=EF=BB=BF
Yu= p came in good condition
all 5 o= f them had memtech branded 7110s (was half expecting an Intel to show up in o= ne of them haha)
The scop= e I have works well for analysis but I dont have a camera set up for it unfo= rtunately
I'll have to fi= gure out feedback on tindie lol was my first time using it
=
the 3870 is a neat chips, I should write s= omething on it sometime, pretty much a Microcontroller version of the F8, an= d they made a UV-EPROM based one too. the 3870 turned out to be very p= opular 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 <craig@sbc-85.com> wrote:
Hi John

It lo= oks like these bubble kits have been delivered. Please let me know if there a= re any issues. Positive feedback on tindie would be appreciated
Regards

Craig

> On Jun 16, 2022, at 4:46 PM, John Culver &= lt;john@cpushack.com<= /a>> wrote:
>
> =EF=BB=BFThanks! Some are for my frien= ds. I am a collector so like old processors and related things. I run cpushack.com if ya want to c= heck it out
>
> Sent from my iPhone
>
>> On Ju= n 16, 2022, at 1:34 PM, SBC-85 <craig@sbc-85.com> wrote:
>>
>> =EF=BB= =BFHi John, I will box these bubble kits up and take to the post office tomo= rrow. If I may ask, what do you plan on doing with these? Not ex= actly a hot market for bubbles, I think my SBC-85 bubble board is the only c= urrent thing that utilizes these. Since these have been sealed, I can=E2=80=99= t 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 tr= ading? I am looking for pro-log 04/40 and 8008.
>> >> Regards
>>
>> Craig