[Hallicrafters] SX101 Drift Problem

[Rbethman]

Sounds like the grid bypass BBODs in the IF stages were also replaced.

Those should be left alone unless DEFINITELY testing bad.  The whole 
characteristic of these old caps in THAT specific chain WERE figured 
into their use.  You may want to relocate them AND put them back where 
they were.

My SX-101 MkIII has had MINIMAL recapping just for that specific 
reason.  I don't have to chase the knob all over the dial.  The damp 
chaser is in place, and drift is minimal.  Yes these old girls drift, 
BUT, it isn't that bad at all.

Bob - N)DGN

Edward B Richards wrote:

>There is more to recapping than just using the same values. Perhaps you
>replaced a cap with a certain temperature co efficient with one of the
>same value but with a different temp. coefficient. New caps can have a
>different impedance than the original. Placement can be important. are
>they in the same position and to the same ground as the original? This is
>why I don't believe in just totally recapping a radio. I only replace
>caps when they fail. Good luck.
>
>73, Ed Richards K6UUZ
> 
>  
>
>>now, you
>>almost have to keep your hand on the tuning knob. 
>>    
>>
> 
>
>_______________________________________________
>List Administrator: Duane Fischer, W8DBF **for assistance**
>dfischer at usol.com
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>
>  
>

-- 
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