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Search: Posts Made By: benalford
Forum: Altair 8800 10-12-2009, 11:19 PM
Replies: 8
Views: 22,594
Posted By benalford
Altair 8800

I found out today that the CompuPro RAM 16 board will not work with the Altair 8800.

Ben
Forum: Altair 8800 10-10-2009, 04:22 PM
Replies: 8
Views: 22,594
Posted By benalford
Altair 8800 for sale

1 new 1k ram board
1 new cpu board
18 slots
1 used, not tried in computer, CompuPro Interfacer 3 with cables
1 used, not tried in computer, CompuPro Ram 16

Thanks for asking.
Forum: Altair 8800 10-09-2009, 03:31 AM
Replies: 8
Views: 22,594
Posted By benalford
Altair 8800 for sale

I have an Altair 8800 assembled kit using only Grant's supplied components.
It is tested and has less than 100 hours of run time.
$2000.00 you pay the shipping.
Forum: Altair 8800 09-03-2009, 04:51 PM
Replies: 10
Views: 20,584
Posted By benalford
880-107 1k static memory board

Marty:

You are right my D/C board is different. I have 2 boards from Grant and I will install one of them. These boards use J1.

Thanks once again

Ben
Forum: Altair 8800 08-27-2009, 07:53 PM
Replies: 2
Views: 8,539
Posted By benalford
88-2 Sio

I'm looking for an 88-2 SIO

Thanks

Ben
Forum: Altair 8800 08-27-2009, 07:52 PM
Replies: 0
Views: 6,065
Posted By benalford
88-4 pio

I'm looking for an 88-4 PIO

Thanks

Ben
Forum: Altair 8800 08-27-2009, 02:59 AM
Replies: 10
Views: 20,584
Posted By benalford
8800 D/C Board

Marty:

My Bad, ICK is correct. I misread pin 2 for pin 12. As for J1 on 8800 D/C board the end opposite wire connection 39 dead ends. I looked through the board with a strong light. But Ic S...
Forum: Altair 8800 08-24-2009, 12:33 AM
Replies: 10
Views: 20,584
Posted By benalford
880-107 1k static memory board

Marty:

Thanks for the advice. I did check the IC data sheet before I tried anything. I don't do a smoke test.

Since I found the error on the memory board I checked the CPU board and found ICK...
Forum: Altair 8800 08-18-2009, 03:14 PM
Replies: 10
Views: 20,584
Posted By benalford
880-107 1k static memory board

Grant:

I would like to purchase a second memory board. I noticed that pin 11 on ICB is not connected. The schematic shows this pin is connected to +5v.
I tried connecting this pin to +5v but it...
Forum: Altair 8800 04-27-2009, 06:16 PM
Replies: 2
Views: 9,473
Posted By benalford
Got the reply

Grant:

Got the reply 04/27/09

Thanks

Ben
Forum: Altair 8800 04-09-2009, 03:58 AM
Replies: 2
Views: 9,473
Posted By benalford
replacement 8800 ckt bd

Looking for a replacement 8800 front panel printed circuit board, with or without components.
Forum: Altair 8800 09-21-2008, 04:45 PM
Replies: 0
Views: 6,556
Posted By benalford
Altair 8800

Grant:

I would like to order an ALTAIR 8800 kit as soon as they are ready. Please send any required information to place the order.

Thank you

Ben Alford
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