[Hammarlund] Heathkit Q multiplier

[Robert Frost]

Bob,

I  have  had a Heathkit QF-1 multiplier tied to my HQ 180A almost since 
it was new (1963).  I never regretted it.  Performance was definitely 
enhanced IMHO.  I would do it again.  It is a trivial mod.  What I did 
was drill a hole in the chassis between two IF cans and mounted a RCA 
connector and tied it to the 455kc IF.  I ran the Q multiplier coax with 
a male RCA plug through the finger hole in the top lid to avoid 
modifying the exterior of the HQ 180A.  Hooking up to the accessory 
socket of the HQ 108A finished the job.  The other nice thing is the 
colors of the Q multiplier match the HQ 180A colors very well.  Give it 
a shot.....it's no big deal to do.

Good luck.

Bob Frost    W7TOM

ROBERT YOUNG wrote:

>Hi, I just bought a Heathkit model GF-1 Q multiplier from Ebay from 1958, it 
>has a 12AX7 in it, is missing the octal socket at the end but otherwise 
>looks in really nice shape. Has anyone here every hooked one of these up to 
>an HQ-180? I know it needs filament and plate power and also needs to be 
>hooked up to the IF circuit, any tips? I assume to just run the plate and 
>filament to a tube socket for the power but where do I hook into the IF 
>circuit? Also will I get any benefit from this? My radio is almost mint and 
>don't want to hack it up at all, thanks,
>
>Bob Young 
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