[R-390] SERIAL 163 FOLLOW UP

[RICHARD MC KINNEY]

Thanks to this forum my R390A is now working on am and cw/ssb.  Yesterday I sat down and drew up a schematic of my bfo circuit and could see there is no way the 6BA6 that it came with in that socket would work.  I was up against a brick wall.  Then thanks to this forum I looked up the product detector mod and there was that schematic I drew up but it had a 6BE6 tube.  I put in a 6BE6 and off she went working fine.  I don't intend to remove the mod now but I do see a bunch of the old caps that need changed.  Someone sure did a factory looking job on the mod and it REALLY had me fooled.
  I was in the Air Force in the 60's as a radio repairman.  I was WN7DGD in my barracks with a homebrew Tx and a Knight R 100.  On week ends I would haul an R390A up to my room and operate.  What a great rig.  Now I'm proud to have one and will work to get it in good shape.  So thanks to all that responded and helped me thru my problem.  74 Rich