[ARC5] Vibrator Power Supplies

[WA5CAB at cs.com]

Neither vibrator power supplies nor Phillips head screws were anywhere near 
new in 1945.  Vibrator supplies were used in small sets up to the size of 
the BC-223-AX (pair of 801A's).  I'm not sure why relatively few (but not no) 
aircraft sets used them.  And Collins used Phillips head screws at least as 
far back as the TCS in 1940.

In a message dated 11/20/2017 16:12:13 PM Central Standard Time, 
releazer at earthlink.net writes: 
> The 800 HZ discussions have led me to once more wonder about vibrator 
> power supplies.  I have 1945 vintage Aviation magazines that have full page 
> ads for this wonderful new invention (the same mags advertise something new 
> called the Phillips Screw).  And I have an old Heathkit VP-1 vibrator power 
> supply that produces 60 ma at 250V with a 12VDC input.  Let's see, now, do 
> we know of any WWII aircraft electronics that require that kind of power?
>   
>  As far as higher power outputs I have the transformers from an RCA UHF 
> Carfone I bought for $1.00 that are for a vibrator power supply.  I don't 
> know how much power that can handle but it is probably far more than an 
> SCR-522 or ARC-3 would require.  That set had 6146B's, I think
> 
> So do we know why vibrator power supplies did not come out in the late 
> 1930's and get used in WWII?
>   
>  Thanks,
> 
> Wayne
>  WB5WSV         
> 
> 
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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