Nevets01
Experienced Member
So, I've been attempting to figure out the power supply off a DCC-116, a clone of the Nova 1200.
The regulated 15v rail, used to power the sense lines in the core memory, seems to be a bit high. I've been adjusting it using the trimmer pot, but I can't get it much less than 15.6 before it trips a crowbar circuit which clamps it down to 1v.
So, what are the tolerances on this sort of line? is 15.7 (lowest I trust to turn on every time) low enough, or will I get errors?
The manual doesn't give tolerances, only saying that it's "15 volts". I found a Data General manual which mentioned that the 15v supply was designed to range from 14.5 to 15.1 volts, depending on temperature of all things.
Thanks,
Nevets01
The regulated 15v rail, used to power the sense lines in the core memory, seems to be a bit high. I've been adjusting it using the trimmer pot, but I can't get it much less than 15.6 before it trips a crowbar circuit which clamps it down to 1v.
So, what are the tolerances on this sort of line? is 15.7 (lowest I trust to turn on every time) low enough, or will I get errors?
The manual doesn't give tolerances, only saying that it's "15 volts". I found a Data General manual which mentioned that the 15v supply was designed to range from 14.5 to 15.1 volts, depending on temperature of all things.
Thanks,
Nevets01