[criageek]

Ok...I FINALLY decided to get back to my 47-1230.  In the past 18 months or so I've learned a lot about these old radios and re-learned quite a bit of tube knowledge that I had forgotten over the years.  There is still plenty to learn but I felt confident that I could proceed with troubleshooting the 47-1230.

Philco's documentation has a GREAT troubleshooting section.  By following it I isolated the problem area and then by doing some staring and comparing I found that I had connected a capacitor to the wrong terminal of the band switch.  Once I corrected that the AM section came to life!  I did a complete alignment on the AM section and it works well.  But...I still don't have any FM so I'm looking for help.

I followed the procedure on this page
   
and found that step 3 fails (of course steps 1 and 2 fail as well) which indicates that the FM oscillator is not running.  I get about -0.1v.  When doing this test on the AM section I get a little more than -4v.  I've tested the 7F8 tube and it's good.  L406 is just a small coil of copper wire (maybe 5 or 6 turns, about 3/8" diameter) attached to the tuning condenser and looks good.  I believe the band switch is good.  So I'm looking for advice...what should I do to proceed?  Here is the schematic of the front end - L406 is at the bottom

   

By the way, did you get your FM section working willydcamaro?

Thanks,
Rich