[R-390] Brought Home a R-390 Today (along With a Viking I)

[Cecil Acuff]

Selenium rectifier (square finned thing on the inside of the rear panel) 
might be blown causing the fuse to go...

Just a shot in the dark though without looking at the schematic for an 
R-390/URR

"A" manual won't be good for much...

Cecil
----- Original Message ----- 
From: "Gary Harmon" <gharmon at idworld.net>
To: "R-390" <R-390 at mailman.qth.net>
Sent: Friday, November 06, 2009 3:44 PM
Subject: [R-390] Brought Home a R-390 Today (along With a Viking I)


> R-390/URR
> Collins s/n 2941
> Order 14214-PH-51-93
> MWO 11-5820-294-35/1
> MFP Nov 1956  ?
>
> Homemade top cover, no bottom cover, has meters and AC cable, R-390A 
> manual
> copy
>
> Note on PS says, "Remove tubes, modified for solid state rectifiers"
>
> Note on top cover says, " PS problems - need tubes; 6082 (2), 5651 (2),
> maybe 26Z5W (2).
> The 26Z5Ws were modified for solid state diodes.  Need to remove tubes if
> using the diodes."
>
> Radio is blowing the 3/8 HV fuse.  This action probably accounts for the 
> PS
> problem note.
>
> Receiver is in excellent condition.  No scratches or mars on the front 
> panel
> but several knobs could use redoing.  Gears look clean, no gook.
>
> Things to look for?  Leave solid state modification?  Other mods to do or
> look for?  Site for R-390 restoration?
>
> Gary H. Harmon, Jr. - K5JWK
> 6003 Archwood
> San Antonio, TX 78239-1504
> 210.657.1549h
> 210.884.6926c
>
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