[Heath] The DX-60B Issue

[Doug & Kathy Davies]

Thanks for the replies fellas.

Not sure if I mentioned it previously but this is the radio I received
partially assembled.  I completed the assembly, triple checked the wiring
and solder connections and moved on to the testing.  When I plugged it in,
all seemed ok i.e all the tube filaments lit up and nothing smoked.  Then,
I put the Function Switch in TUNE and got a loud hum from the transformer
and I let the smoke out of resistor R35.  I re-checked everything and found
that resistor R34 was open.

Now I don't know if R34 was open prior to R35 burning up.  I didn't check
component values prior to testing.  The question then is, did R34 open as a
result of R35 smoking or was it open prior to that event?  I would think
that if R34 was open prior to testing, it would certainly put a huge strain
on R35 causing it to burn out.  Am I correct here?  Going over the circuit,
I can't see anything else that would have caused R35 to smoke.  Any ideas?

Doug
VE7DRF
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