[R-390] SSB Conversion Photos

[Jim DiMauro]

Hi All:

For those interested, I shot a couple of photos of the SSB conversion on my
Collins R-390A.  Here are the links:

http://webusers.warwick.net/~u1016524/r390afront.JPG
http://webusers.warwick.net/~u1016524/r390assbadapt.JPG

You can see on the front panel that the Mode switch positions are
"LO-UP-AM-BFO" and the dial lock control is now a "VFO Vernier," which
provides kind of a fine tuning of the SSB signal, although in my opinion
it's not really necessary, since SSB signals are easily tuned in with the
main tuning knob.

The subchassis on the underside of the radio supports a 6U8 and associated
circuitry.  Near as I can tell from the photographs it looks identical to
the rare factory SSB conversion described on r390a.com, but since my radio
is a Collins-made unit from the first contract in 1954, it's almost
certainly a later addition.

So there you have it.

73,
Jim
WA2MER