Re: [vcf-midatlantic] 8080 programmer trainer
I had purchased an MST-80 off eBay a few years ago and the primary reason was I wanted the clean white/gold ceramic 8080 for use in my IMSAI. I replaced that CPU with a brown ceramic 8080 and resold it to another list member for my original purchase price. One cool feature of the keypad & monitor program is that data can be entered/displayed in either Hex or Octal just by toggling the H/O key on the pad. I think this is very handy as many people learned the 8080 opcodes in octal (like the Altair panel is laid out) while other folks like me learned them in hex. I worked for IBM and was trained to use hex notation while some of my friends who used mini's like the PDP-8s used octal. I thought this was a very handy feature to implement. Regards, Jeff On Fri, Jul 31, 2020 at 5:14 AM Sentrytv via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
Thanks for the info I have not had time to research yet. I’m going to check it out today. 👌🏽
Sent from: My extremely complicated, hand held electronic device.
On Jul 31, 2020, at 12:03 AM, Doug Crawford <memphis@ptd.net> wrote:
The MST-80 with ceramic ics- the ICs are worth more than the trainer. One with plastic ICs is going for $200 right now. Probably the going rate these days. Not a lot have transacted in recent memory. Its a really nice little unit. I have one. Rarer than the Heathkit. DC
Thanks Jeff! When you have a chance send me an email to my personal address on how you guys are doing there. Mike R. Sent from: My extremely complicated, hand held electronic device.
On Jul 31, 2020, at 11:51 AM, Jeff Galinat <jgalinat@gmail.com> wrote:
I had purchased an MST-80 off eBay a few years ago and the primary reason was I wanted the clean white/gold ceramic 8080 for use in my IMSAI. I replaced that CPU with a brown ceramic 8080 and resold it to another list member for my original purchase price. One cool feature of the keypad & monitor program is that data can be entered/displayed in either Hex or Octal just by toggling the H/O key on the pad. I think this is very handy as many people learned the 8080 opcodes in octal (like the Altair panel is laid out) while other folks like me learned them in hex. I worked for IBM and was trained to use hex notation while some of my friends who used mini's like the PDP-8s used octal. I thought this was a very handy feature to implement. Regards, Jeff
On Fri, Jul 31, 2020 at 5:14 AM Sentrytv via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote: Thanks for the info I have not had time to research yet. I’m going to check it out today. 👌🏽
Sent from: My extremely complicated, hand held electronic device.
On Jul 31, 2020, at 12:03 AM, Doug Crawford <memphis@ptd.net> wrote:
The MST-80 with ceramic ics- the ICs are worth more than the trainer. One with plastic ICs is going for $200 right now. Probably the going rate these days. Not a lot have transacted in recent memory. Its a really nice little unit. I have one. Rarer than the Heathkit. DC
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Jeff Galinat -
Sentrytv