Re: Tektronix 532 LV rail shorted
Hey Randy,toggle quoted messageShow quoted text
Glad to know it was just the fuse. I am a bit confused about the +89V AC,
do you mean DC ?
I would ask what the the reference for this measurement - ie where is the
negative lead of the meter connected while taking this measurement.
If you suspect that some other power rail is shorted to -150, there are
many ways to confirm if there is a short, you can try measuring the
resistance from output of each rail to -150V out.
Or remove all rectifier tubes - except for the -150V rail - and also
disconnect terminal 14 from the transformer (for 100V) and then power up.
This will disconnect all rails except -150. Then you can try connecting the
rails one by one back to find out which rail is causing the short. Follow
the sequence of +100, +225 and +350 while reconnecting, as they are stacked
in that order.
All the best.
On Fri, Jan 17, 2020 at 7:40 AM <email@example.com> wrote: