[R-390] SSB Conversion Photos

[Llgpt1@aol.com]

In a message dated 7/19/2003 7:05:15 PM Central Daylight Time, 
jfd@warwick.net writes:

> 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
> 

That is basically the same conversion as pictured in Paolo Viappiani's R-390 
- R-390A Handbook. The Schematic is printed in it also, schematic is in 
english, noted as an EAC conversion.




Les Locklear

"The two most common elements in the universe are hydrogen and stupidity"

Harlan Ellison


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