[Boatanchors] AN/GRR-5 Receiver Power Supply Problems

[Glenn Little WB4UIV]

Anything in the 1N5400 series should work.
Use these diodes to create the bridge or other configuration.
The voltage will be higher since the diode voltage drop will be less.
If the voltage is too high, use a 1N5400 in series with the replaced 
diodes to drop the voltage about 0.5 Volts.
Use more diodes as required.

73
Glenn
WB4UIV

On 5/22/2023 10:24 PM, Dave Hollander wrote:
> My AN/GRR-5  which I got at age 12 in 1964 has stopped working. The 
> vibrators are OK so I am suspecting the selenium rectifiers.
>
> Has anyone changed these out and what silicon rectifiers did you use?
>
> This radio was a gift to me from my cousin W6COJ who was in Air Force 
> MARS at the time. It was brand new and came with the canvas accessory
> bag full of goodies. Really neat radio. I sold it in 1978 to a 
> collector here in Phoenix. He had it for sale at a hamfest in 2003 and 
> I bought it back. It was still in excellent condition. How did I know 
> it was mine/ I still had the Beatle'sYellow Submarine stickers I put 
> on it when I was high school.
>
> Any help would be appreciated.
>
> Tne es 73,
>
> Dave N7RK
>

-- 
-----------------------------------------------------------------------
Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
Amateur Callsign:  WB4UIVwb4uiv at arrl.net     AMSAT LM 2178
QTH:  Goose Creek, SC USA (EM92xx)  USSVI, FRA, NRA-LM    ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"