Re: [M100] quick electronics question about AC adaptor port on M100

2018-02-13 Thread Brian White
Yes the center pin is negative. Same is true for most of the related accessories like the tape drives ctr-41, ctr-80, ccr-81, ccr-82, ccr-83, the tpdd & tpdd2 disk drives, trp-100 printer, etc. They all take 6vdc, center negative, same 5.5x2.1mm barrel plug. -- bkw On Feb 12, 2018 3:02 PM, "mega

[M100] quick electronics question about AC adaptor port on M100

2018-02-12 Thread megarat
Greetings again, folks.  Thanks for the feedback you gave me about digital audio recorders, it was very helpful.  I hope you don't mind another hopefully quick question. Some time ago I built an off-board power supply that could power my M100 with 4 D-cell batteries by connecting them to the AC