Re: [M100] Drop-In VR1 replacement contrast potentiometer for Radio Shack TRS-80 Model 100 and NEC PC-8201a

2021-09-12 Thread william stewart
Excellent Article Brad, Looking forward to implementing this on my M100. Thanks for contributing to the group. William Stewart On Sunday, September 12, 2021, 02:18:46 PM EDT, Brad Grier wrote: Hi everyone, this is mostly a post for those who like to recover and restore m100 machines

Re: [M100] REXCPM / REX# / MVT100

2020-09-09 Thread william stewart
oh NOW you have a 4MB REXCPM. Well I guess I'll live.where can i find the pages for the VT100 module. Didn't even know you were building one. Cheers On Wednesday, September 9, 2020, 12:33:33 PM EDT, Stephen Adolph wrote: Folks, thanks for the patience.  Summer is over! Just a quick n

Re: [M100] dual CPU project

2020-05-30 Thread William stewart
I somewhat, vaguely recall this posting last summer from you. I had my mind on other things as there were painters in the house and they were doing more damage than good. That being said I would like to make this one statement very clear concerning this project. SIGN ME UP!! Late last year I b

Re: [M100] dual CPU project

2020-05-30 Thread William stewart
Stephen, Are you suggesting a swap of the 8085? Sent from my iPhone > On May 29, 2020, at 7:46 AM, Stephen Adolph wrote: > > Reviving this thread. > Now that we have a solid CP/M application written in 8080, there should be a > way to boot into CP/M using the NSC800. > I dropped this project

Re: [M100] replacement motherboards

2020-05-11 Thread William stewart
Dan, I feel exactly the same as you do. I too bought a dead 102 and found some suspect parts on board. Some burned, corroded. Ni-Cad ok though. I initially wondered what it would take to design an Model T2 with a Z80 on board. I extracted the mobo of my T2 today and I find the design process

Re: [M100] Need help with bad RAM identification and replacement

2019-08-23 Thread William stewart
t;>> To be clear, I'm looking for the project page, where one assumes the >>> projects are discussed in detail, not the OSHPARK Link where one can order >>> the PCBs. >>> >>> TIA >>> >>> William Stewart >>> >>> Sent

Re: [M100] Need help with bad RAM identification and replacement

2019-08-23 Thread William stewart
Can anyone provide the project page for the OSHPARK contributor Stardust? To be clear, I'm looking for the project page, where one assumes the projects are discussed in detail, not the OSHPARK Link where one can order the PCBs. TIA William Stewart Sent from my iPhone > On Aug 22,

Re: [M100] dual CPU project

2019-07-11 Thread William stewart
I'm interested. I have a M100 I'd like to see CP/M run on. Smack me up! Sent from my iPhone > On Jul 11, 2019, at 10:30 AM, Stephen Adolph wrote: > > Motivated by 2 things > 1) discovery of the NSC800 Z80 processor that is 80C85 like > 2) continuing to work in the direcition of CP/M > 3) and r