Steve Sousa wrote in message
anews.com...


"N_Cook" wrote in message
...
If the 900 ohm one was shot then it implies some shorted turns that is
unlikely to change with heat and/or vibration



Hello:

the amp is a grundig como e/st, you can see a picture and the schematic at
http://meuble.radio.free.fr/stereo_c...dig/index.html

i haven't removed the transformers because they are soldered to the
chassis!
(the metal bracket is soldered to the chassis *and* the pcb)



Do the 2 in one output valves mean the amp is compact size?
I know an intermittent break in low impedance side of output Tx can lead to
valve failure but does intermittant high imp side harm the drive valves?
The Tx numbers matching on that schematic confirms they should be to within
about 5 percent the same measurements