[R-390] Spectrum Analyzer For trade

[Dave Faria]

GM List.  I have for trade a Panoramic Spectrum Analyzer Model SB-15A by
Singer.  It was a project I started abt 5 years ago.  All I have done is
clean the unit.  I have the depot maintenance manual(copy from Fair Radio).
The analyzer will power up and take a signal from a signal generator but,
there is a problem with the gain.  The tuning for the center frequency is
off and probably the sweep width as well.  Calibration may just be the
problem but, I doubt it, there are probably other problems.  The Center
frequency is tunable from 0 - 500khz from manual(name plate says 100 to
600khz) and sweep dial 1 to 200khz.

 

Anyway, what I'm looking for is a R-390A I can use to build a R-725.  The
radio does not have to work but, the modules need to be complete with no
corrosion.  Grease is OK - I can clean the radio and rebuild the gear train.
It would be nice if the panel is engraved or in good shape if silk screened.


 

 

I can provide pictures of my Analyzer.

 

Thanks for your interest.

 

Dave Faria

Austin, Tx