[Boatanchors] Hallicrafters SX-28 and 6SB7Y

Al Klase al at ar88.net
Tue Dec 5 19:06:11 EST 2006


Drew,

Why do you want to do any of this at this late date?  OK the mixer MIGHT 
help, but nothing is going to make an SX-28 into a 21st Century radio.  
.  I wouldn't mess with the rest of it, especially that oscillator 
circuit.  I trust you've completely recapped the old girl.  You're 
wasting your time if you haven't.

Regards,
Al

Drew Papanek wrote:

>
>
> Hi All,
>
> I assume that the 6SB7Y would be a good swap for the 
> conventionally-connected not-self-oscillating 6SA7mixer in the 
> Hallicrafters SX-28.  It would give increased gain and maybe lower 
> noise.  Perhaps some peaking of the mixer input tuned circuits would 
> be required. ....
>

-- 
Al Klase - N3FRQ
Flemington, NJ
http://www.skywaves.ar88.net/




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