Was the vibrator pack the first switchmode psu? Still in use in the late
'70's, maybe longer. Fairly short life for the vibrator, though. Perhaps a
mercury wetted version would have better life.
David
G3UNA
----- Original Message -----
From: "pc5m, Carel" <pc5m@xs4all.nl>
To: <amps@contesting.com>
Sent: Monday, September 17, 2007 7:10 AM
Subject: Re: [Amps] switching power supply for tube amplifier
>> I find it interesting that over the last 20 years, I've had more solid
>> state failures than tube failures.
> <snip>..<snip>
>> So I wouldn't really want a switcheing PSU at HV.
>> 73
>> Peter G3RZP
>
> Hi Peter,
>
> If you are concerned with the high failure rate of silicon/IGBT's, you
> could also construct a real heavy switcher with...tube's....-:)
>
> gl,
>
> Carel.
>
>
>
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