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Search: Posts Made By: Grant Stockly
Forum: Troubleshooting 06-07-2007, 02:06 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
From: Dan Date: Sun, 03 Jun 2007 12:50:47 -0400...

From: Dan
Date: Sun, 03 Jun 2007 12:50:47 -0400
Subject: Re: [Altair Computer Club] 88-PPG fixed with story

what I like to know is somebody there transcribing this while you troubleshoot ?
you...
Forum: Troubleshooting 06-07-2007, 02:06 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
From: "Steve" Date: Sun, 03 Jun 2007 16:18:14...

From: "Steve"
Date: Sun, 03 Jun 2007 16:18:14 -0000
Subject: [Altair Computer Club] Re: 88-PPG fixed with story

Congratulations, Grant. It's nice to know there's still a
functioning programmer...
Forum: Troubleshooting 06-07-2007, 02:05 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
From: "jack99rubin" Date: Sun, 03 Jun 2007...

From: "jack99rubin"
Date: Sun, 03 Jun 2007 12:48:32 -0000
Subject: [Altair Computer Club] Re: 88-PPG fixed with story

Thanks for another interesting chapter - hope you're writing a book
on...
Forum: Troubleshooting 06-07-2007, 02:04 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
From: "jack99rubin" Date: Sun, 03 Jun 2007...

From: "jack99rubin"
Date: Sun, 03 Jun 2007 12:20:53 -0000
Subject: [Altair Computer Club] Re: 88-PPG Troubleshooting

My experience with the Caig products has been mostly with Heathkit
stuff...
Forum: Troubleshooting 06-07-2007, 02:03 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
From: "Steve" Date: Sun, 03 Jun 2007 05:32:29...

From: "Steve"
Date: Sun, 03 Jun 2007 05:32:29 -0000
Subject: [Altair Computer Club] Re: 88-PPG Troubleshooting

Jack,

I don't know whether the "silver" pins are real silver or tin-lead,
but...
Forum: Troubleshooting 06-07-2007, 02:02 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
From: Dan Date: Sun, 03 Jun 2007 01:03:30 -0400...

From: Dan
Date: Sun, 03 Jun 2007 01:03:30 -0400
Subject: Re: [Altair Computer Club] 88-PPG Troubleshooting

Tarnish has been a common problem for a long time. I use see boards that
we made only...
Forum: Troubleshooting 06-07-2007, 02:01 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
From: Grant Stockly Date: Sat, 02 Jun 2007...

From: Grant Stockly
Date: Sat, 02 Jun 2007 20:41:05 -0800
Subject: [Altair Computer Club] 88-PPG fixed with story


Using the data from the logic analyzer I traced out the problem with the ...
Forum: Troubleshooting 06-07-2007, 02:00 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
From: "Steve" Date: Sun, 03 Jun 2007 04:17:32...

From: "Steve"
Date: Sun, 03 Jun 2007 04:17:32 -0000
Subject: Re: [Altair Computer Club] 88-PPG Troubleshooting

It's probably not the sockets. The old conductive antistatic foam
that they used...
Forum: Troubleshooting 06-07-2007, 01:57 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
From: Grant Stockly Date: Sat, 02 Jun 2007...

From: Grant Stockly
Date: Sat, 02 Jun 2007 13:42:24 -0800
Subject: Re: [Altair Computer Club] 88-PPG Troubleshooting

This morning I tried to use the programmer "cold" and it failed. At least ...
Forum: Troubleshooting 06-07-2007, 01:56 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
From: Grant Stockly Date: Sat, 02 Jun 2007...

From: Grant Stockly
Date: Sat, 02 Jun 2007 03:43:51 -0800
Subject: [Altair Computer Club] 88-PPG Troubleshooting


NOTE:
I JUST programmed a EPROM to find out if letting the thing sit powered...
Forum: Troubleshooting 06-07-2007, 01:53 AM
Replies: 10
Views: 45,480
Posted By Grant Stockly
Fixing an 88-PPG 1702A Programmer

I borrowed a MITS 88-PPG 1702A programmer from H. E. Robert in December. I did not get around to trying the programmer for some time and when I did it did not work.

Not only did I have a need to...
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