[HBR] Restoring old receiver

[Stan Wilson]

I recent acquired an old receiver from the late 1940s that is not
collectable grade.   Every cap in it needs replaced plus several  tubes.
It is a National and the  basic design was no doubt state of the art for
a AC/DC receiver in that era.  I am considering redoing all of the caps
and rewiring the tubes for a filament transformer and also using a
reverse filament transformer to generate the DC.   Other choice is what
to do about the detector stage.   My first thoughts were to replace the
6H6 with a 6BE6 product detector, but after consideration think maybe
the better choice is to restore everything electrical with the improved
power supply circuit and add a RF connector to go to an external Q5er.  

 

After all of the rework it will still not be a collectable quality
receiver, however, it will look original, and be an excellent test
receiver (and safe with the isolated power supply) for my work bench
that I can also use to listen to SSB activity on the bands or the local
AM stations.

 

Wonder what others have done in similar cases ?  Have you used a oldie
as the foundation for a HBR or improved one ?

 

de stan ak0b

 



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