19 Sep
2004
19 Sep
'04
3:34 p.m.
lowering the capacitance would work. The transformer may have a tap on it
where the cap connects to use 60 hz also. The chassis was "wired" for 50 hz
so the tag would have that rating on it. I would expect DEC would have kept
one transformer in stock and customized at mfg (maybe).
best regards, Steve
At 02:30 PM 09/19/2004, you wrote:
On Sun, 19 Sep 2004, vrs wrote:
Probably replacing the capacitor (Oil or PCB) with one about 70% the
capacitance of the current one would be the easiest thing. This is to shift
the resonance up to 60 Hz. Be very careful of the resonant capacitor circuit,
it has quite high voltages...
Peter Wallace
look at
the capacitor connected to the transformer. That is a constant
voltage transformer and will need 50 hz to work correctly.
Hey, I have one of these on a shelf as a "spare" 8/a chassis (with almost
enough spare boards to make a spare 8a :-)). I'd like to know if the 50Hz
turns out to be a strict requirement or not. If so, is there is any easy
way to convert the thing for 60Hz?
Thanks!
Vince