4 Jul
2006
4 Jul
'06
4:29 p.m.
The only
winding whose voltage I am confident of is the one that
drives the tube heaters.
It's not unheard-of for 'scopes to have
series-strings of valve
heaters run off fairly high voltage stabilised DC lines. It's also not unheard-of for the EHT to come from
an
oscillator/transformer circuit run off the normal HT (B+) line, not
straight from the mains transformer.
Kind of the way TVs tend to do it, with a flyback (though of course
without the associated horizontal-deflection yoke stuff)?
I'm fairly sure that's not done here. There are no inductors of
significant size except the power transformer.
Anyone know a
good supplier for ten-kg power transformers? :-(
Rewind it yourself?