[Hallicrafters] Field Coil Speaker heat

John Brooks jbbrooks2000 at yahoo.com
Sat Feb 21 07:41:30 EST 2004

Sorry for the non-HC content, but you folks seem to
know so much about old electronics.  I am helping a
friend repair his RCA console 78 player and the magnet
structure on the field coil speaker is getting pretty
warm, maybe 120F.  Resistance of the field coil is
in-spec at 1100 ohms.  It is, of course, the choke for
the power supply and does carry a fair amount of
current, but my question is how warm are these things
supposed to get?


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