[R-390] obtaining SSB detector crystals

[Perry Sandeen]

Yo Bubba Dudes!,
A number of posts have discussed obtaining crystals and some previous published circuits.
What seems to have been overlooked is that the A's AGC circuit must be modified for proper SSB operation.
So one is faced with one of two choices.  Do I dig into my A and modify circuitry as Chuck Felton, or others have done or do I want to buy a turn-key solution?  The Tree-top SSB adapter does all the SSB functions on one small PC board.
I'll pay the $100 instead of digging into my receivers.  YMMV (I have no affiliation with Treetop.) 

Regards,
Perrier