[R-390] SERIAL # 163

[rbethman]

Rich,

Whom is the manufacturer?  Just a serial number doesn't help with whom 
made it/

The collective wisdom is here amongst us, but I had a '67 EAC s/n 131

I also have a '51 Collins in the 3XX region.

Perhaps some pix of the IF section.  Holler if you need a place to post 
them.  I or others would be willing to put them up and provide you the 
link to post.

Bob - N0DGN

RICHARD MC KINNEY wrote:
> DE WB4VFN Rich
>   I have a R390a Serial @ 163.  Problem is turning on the BFO looses all output.  Rx is ok all bands with BFO off.  I have a manual for thr R390a but I guess mine is an earlier model.  The BFO in mine is nothing like the schematic.  Mine has a small relay that is switched on by the BFO switch.  I don't think this is any kind of mod as it looks factory wired.  The BFO circuit is also very different then the schematic I have.   The rig was given to me and I would love to see it work again properly.  So far I've had to change the 17 mc crystal and a few tubes to hear it work again.  Anyone have a schematic with a relay in the BFO switch?  73 Rich
>   

-- 
Bob - NØDGN