[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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