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 Pruitt" <[EMAIL PROTECTED]> > > "Jim Pruitt" made an utterance to the drakelist gang > ---------------------------------------------------------------------- > Hello Mike and the group. > > I have it from 2 reliable sources that U9003 was actually a mask programmed > 74S387 which is a 256 x 4 bipolar prom. > > I have found circuits for a couple of readers. One is at > http://www.geocities.com/SiliconValley/5857/progamr.htm > but will only do the Signetics versions (82S126, 82S129, etc) which are > available from Jameco but much more expensive than the 74S387. What I have > not been able to find is what software to use with that hardware. N7OCS > sells a dos program but I can not tell from his web page if that will only > set up files for Syntor and MCX100 Motorola vhf radios or if it will read > and program all the devices the programmer will work with. So if anyone > knows where to get software that will work with the programmer I would be > interested in knowing. > > I do know that there are many "universal programmers" in current production > that read bipolar proms but most are in the $800 plus price range. There > was one a pocket programmer that I ran across that is usb but is $250. It > is or was very popular with the PIC group. > > I do not know if any of this information helps or not but I would also be > interested in getting the hex file if anyone does happen to read one of the > U9003 devices. > > Thank you. > > Jim Pruitt > > ----- Original Message ----- > From: "MICHAEL TALLENT" > To: "David Stinson" ; > Sent: Sunday, January 28, 2007 8:40 PM > Subject: Re: [drakelist] U9003 DR-7 PROM Chip- Copy? > > > > > > "MICHAEL TALLENT" made an utterance to the > drakelist gang > > ---------------------------------------------------------------------- > > Do you have the part number of the PROM, I have many old data books and > > maybe I can tell you the size. I also have several PROM programmers by > > Data-IO that could probably read it, or make copies. > > > > Mike Tallent W6MXV > > > > ----- Original Message ----- > > From: "David Stinson" > > To: ; "Gerry" > > Sent: Sunday, January 28, 2007 9:32 PM > > Subject: Re: [drakelist] U9003 DR-7 PROM Chip- Copy? > > > > > > > > > > "David Stinson" made an utterance to the drakelist > > gang > > > ---------------------------------------------------------------------- > > > > > > ----- Original Message ----- > > > From: "Gerry" > > > Subject: RE: [drakelist] U9003 DR-7 PROM Chip- Copy? > > > > > > > > > > You may well have the ONLY remaining example. > > > > I believe the chip was discontinued ages ago. > > > > I wonder if anyone has an eprom reader > > > > that will even read it. > > > > Might be interesting but I think I'd rather baby the thing. > > > ----------------- > > > > > > I don't have a reader... I was hoping someone had one > > > so we could get together and download the code > > > before I install it. I guess I could rig up a BCD counter and > > > record it, step by step. Can't be that big, > > > since it's mid-1970s chip.... can it?? > > > > > > 73 Dave S. > > ---------------------------------------------------------------------- > Submissions: drakelist@www.zerobeat.net > Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body > Hopelessly Lost: [EMAIL PROTECTED] - help in body of message > Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net > ----------------------------------------------------------------------
