Synertek KTM-3/80 -- 2 questions

From: Eric <elf_at_ucsd.edu>
Date: Sun May 27 02:41:13 2001

Hi,

I recently made a trade in which I received a KTM-3/80 terminal (thanks
Claude W. !)

Questions:

(1) Does anyone know what the power requirement is? Claude mentioned he
tried a 9V AC, 1.5A or 2A power supply - and the terminal produced
"garbled" characters on the screen. It was not determined if this was due
to an improper power level being supplied - or due to some problem with the
terminal itself. (My circuit analyzing skills leave much to be desired.)

2) Upon opening the terminal, at one point someone had added a daughter
card. It is of the homespun type, not a commercially sold option. The
daughter card has a total of 8 chips on it, which are:

N7400A
SN74LS393N
74LS04PC
SN74LS133N
SN74LS02N
74LS04PC

It has been so long since I used this terminal - I don't recall if there
was some particular feature missing that would have been nice to add.

Thanks for any/all info ...

Eric F.
Received on Sun May 27 2001 - 02:41:13 BST