Another problem with this amp. a small DPST 5V relay switches in minor
+/-15V rails but one pole contacts welded closed. Supply side cap 220uF/
25V and switched line has 68uF/35V which is blown on the permanent welded
set of contacts, other rail ok so far. There is 000 ohm resistor down stream
of each contact , any suggestions of ohmage to try replacing it with now
the relay is out for replacement? contacts are 1 amp DC rated and is
probably just supplying 4 dual opamps and no transistors or anything else
active in the phono preamp and tape-in and tape out section. Presumably in
the range 2R to 15R in each rail to limit switch on current. Presumably all
those , user unused , opamps were permanently "powered" unipolar, never
checked phono inputs on initial testing