[Hammarlund] HQ-120X Restoration

[Carl]

They were the forerunner of the HQ series and share much common circuitry 
and components with the 129/140. It also became the USN and Coast Guard RBG 
which was a cross between the 120 and 129.

Besides the caps check all resistors for tolerance.

Its main problem will be poor sensitivity on the 6th band due to tube 
choices. Switching to a 6SG7/6K8 up front will be some help or go full out 
with the 6X8 mixer mod.

Carl
KM1H



----- Original Message ----- 
From: "Joe Connor" <joeconnor53 at yahoo.com>
To: <hammarlund at mailman.qth.net>
Sent: Saturday, February 19, 2011 1:16 PM
Subject: [Hammarlund] HQ-120X Restoration


>I just picked up a nice HQ-120x receiver that I plan to restore. Is there 
>anything special I should be aware of or watch out for? At first blush, 
>this receiver seems to be more similar to the HQ-129 than to the early 
>Super Pros. Is that accurate?
>
> My first steps are going to be to replace the filter caps and the power 
> cord. Any other tips or suggestions would be gratefully appreciated.
>
> Thanks for looking this over.
>
>                                Joe Connor
>
>
>
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