[Hammarlund] HQ-110 Rx-----------HELP
ARDUJENSKI at aol.com
ARDUJENSKI at aol.com
Wed Sep 28 12:55:31 EDT 2005
The 9+ HQ-110 I purchased appears to have a significant problem:
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There is definitely a problem in the IF of the 110. T2 is very
intermittent, for one thing. From the looks of it, someone has been
into it before (probably looking to fix this very problem).
If you look at the schematic, T1 and T2 are special 3 winding IF cans,
which have one coil tuned to 455kc and another to 3050 Kc (the two IF
frequencies used in the double-conversion scheme). I checked, and the
intermittent is present on both frequencies.
The bad news is that the coil's continuity does not change when the
intermittent occurs. That means that the problem is likely the
resonating caps which are built into the base of the IF can.
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ITEM 1: Do I need to replace or is there a repair for this????????If so is
there a source or someone can sell from a basket case?
ITEM 2: Also I need the 100KC crystal for the calibrator
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Alan KB7MBI
Woodinville, WA
Member ARRL / ARCI / ARS / FISTS / NAQCC
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