[ARC5] WANTED: RA-62 Rectifier for SCR-522

[Christopher Bowne]

I put a BC-625 SCR-522 transmitter on 2 meters back when I was a Novice at age 14 in 1967 with a home brew power supply based on some scrapped TV set chassis power transformers for the 300V B plus and -150 volt bias voltages.  Of course the 5U4 and 5Y3 rectifiers, chokes and filter caps all came from the TV chassis as well.  For the 12 VDC to supply the filaments and relays, I used a power pack from an Eldon slot car racetrack set.  Antenna was a 5 element Yagi with a 2x4 wooden boom and elements made from scrapped TV antenna tubing.  

I recall using a large Lionel O gauge electric train transformer (the next one down from the big “football” shaped one) for various other power supply projects back then, it had a number of fixed and of course variable AC output voltages.

The power supply for the BC-625 was built breadboard style on a 1x6 pine board.

I wouldn’t want to use an RA-62 these days unless I replaced the selenium rectifiers with silicon ones!  

73 de Chris AJ1G
Stonington CT
Sent from my iPhone

> On Jul 25, 2021, at 14:51, Hubert Miller <Kargo_cult at msn.com> wrote:
> 
> Interesting. Does this mean the R-849 ( BC-348 with squelch box for FAC Jeep ) dates no earlier than 1952 ?
> -Hue Miller
> 
>> Subject: Re: [ARC5] WANTED: RA-62 Rectifier for SCR-522
> 
> The first US 24 volt Jeep put into standard production was the M-38. Production started in 1952. They would not have been available during WW2 to US Armed forces in the Pacific or anywhere else. 
> Mark D. 
> WW2RDO 
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