Re: [drakelist] U9003 DR-7 PROM Chip- Copy?

2007-01-31 Thread w1id
Very interesting post. Suddenly I realize there is another fly in the ointment besides part and hardware obsolescence: the operating system. I wonder what Drake used. Was it Dos, CP/M, or what? Also what is the data format? Im curious. -- Original message -- From: Jim

Re: [drakelist] U9003 DR-7 PROM Chip- Copy?

2007-01-31 Thread David Stinson
David Stinson [EMAIL PROTECTED] made an utterance to the drakelist gang -- I did a little reading in the TR-7 service manual. U9003's job is to watch the BCD codes when you push the up and down buttons and to disable them when

Re: [drakelist] U9003 DR-7 PROM Chip- Copy?

2007-01-31 Thread David Stinson
David Stinson [EMAIL PROTECTED] made an utterance to the drakelist gang -- - Original Message - From: [EMAIL PROTECTED] Subject: Re: [drakelist] U9003 DR-7 PROM Chip- Copy? I wonder what Drake used. Was it Dos, CP/M,

Re: [drakelist] U9003 DR-7 PROM Chip- Copy?

2007-01-31 Thread MICHAEL TALLENT
MICHAEL TALLENT [EMAIL PROTECTED] made an utterance to the drakelist gang -- I have some 82S129 and the Fairchild equivalent 93427 and a Data I/O 22A programmer that can program most all the bipolar proms, if someone can send me

[drakelist] 34 PNB Noise Blanker

2007-01-31 Thread Kevin
Came out of a TR4CWRIT Noise Blanker $100 plus shipping Kevin [EMAIL PROTECTED]