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smoke escaping from resistors
#16

Arran

I thought you suggested the smoking occurs due to the field coil being disconnected.

If it is connected, anything can be the reason, and I thought of RF 78 tube shorts.
Part #19 short (if the field coil IS connected) would require also some short in the Det. oscillator tube, but even this will not reault in #7 smoking as it is serialized with some 50Kohms resistance and the drop on it (again, if #19 is at fault) would be so small (0.5% of the total voltage), it is far from causing anything like 200 Ohms resistor (also probably 1/2W) to smoke.

If #61/62 do smoke, this indeed may be (potentially) due to the field coil missing; #7 - unlikely.

I would say, if #7 smokes with the field coil removed, it will smoke with the coil in place too.
I would look for shorts in wiring - the schematic does not show any path that can do it.


Messages In This Thread
smoke escaping from resistors - by raydog - 03-10-2012, 05:13 PM
RE: smoke escaping from resistors - by rghines1 - 03-10-2012, 07:56 PM
RE: smoke escaping from resistors - by Arran - 03-10-2012, 08:21 PM
RE: smoke escaping from resistors - by raydog - 03-11-2012, 03:33 PM
RE: smoke escaping from resistors - by raydog - 03-12-2012, 08:32 AM
RE: smoke escaping from resistors - by 7estatdef - 03-12-2012, 04:42 PM
RE: smoke escaping from resistors - by rghines1 - 03-12-2012, 05:24 PM
RE: smoke escaping from resistors - by Arran - 03-13-2012, 06:54 PM
RE: smoke escaping from resistors - by codefox1 - 03-12-2012, 04:50 PM
RE: smoke escaping from resistors - by raydog - 03-12-2012, 07:13 PM
RE: smoke escaping from resistors - by raydog - 03-14-2012, 07:39 PM
RE: smoke escaping from resistors - by morzh - 03-17-2012, 06:41 PM
RE: smoke escaping from resistors - by Arran - 03-17-2012, 10:36 PM
RE: smoke escaping from resistors - by raydog - 03-18-2012, 10:20 AM
RE: smoke escaping from resistors - by morzh - 03-18-2012, 11:20 AM
RE: smoke escaping from resistors - by Arran - 03-19-2012, 12:29 AM
RE: smoke escaping from resistors - by morzh - 03-19-2012, 01:51 PM
RE: smoke escaping from resistors - by raydog - 03-18-2012, 02:55 PM
RE: smoke escaping from resistors - by raydog - 03-20-2012, 01:06 PM
RE: smoke escaping from resistors - by morzh - 03-20-2012, 09:28 PM



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