[Hallicrafters] SX-62A Alignment

[Carl]

----- Original Message ----- 
From: "Joe Connor" <joeconnor53 at yahoo.com>
To: <hallicrafters at mailman.qth.net>
Sent: Wednesday, August 26, 2009 6:02 PM
Subject: [Hallicrafters] SX-62A Alignment


>
>
> I'm in the process of reviving a very beat-up old SX-62A. An IF alignment 
> did wonders for sensitivity. When I got to the RF alignment, however, the 
> trimmer caps for Bands 1-4 do not seem to have any effect whatsoever. (On 
> Band 6, FM, however, the trimmers made that band come to life). What could 
> be causing the trimmers to be ineffective on Bands 1-4.

Only one RF stage is used on the 2 lowest bands. The switch wafer could be 
cooked on the others due to operating with a leaky cap.


>
> Another question: a prior owner subbed 6L6s for the 6V6s. Is there any 
> good reason to do that?

It helps the power and audio transformers to fail faster.

Carl
KM1H


> As always, thanks for your help.
>
>                                   Joe Connor
>
>
>
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