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[AMPS] 8877 rectifier board considerations

To: <amps@contesting.com>
Subject: [AMPS] 8877 rectifier board considerations
From: 2@vc.net (2)
Date: Mon, 19 Nov 2001 18:03:18 -0800
>
>Rich said:
>
>>A perfboard version is not smaller but it runs at lower junction temps. A 
>>board version of 8kV/3A costs $1.36 plus the cost of the perfboard.
>
>Since this beastie will only see an ampere on the rare and unintended
>peak, I suspect that either diode strings or modules will last
>a long time, unless It Happens.  There's a 50-ohm, 100-watt
>resistor in the RF deck as an offering to the Glitch Gremlin, for
>whatever that's worth.
>
>Speaking of glitches..
>None of my 8877's have been hot for some time now. (6 months to
>2-3 years, depending on the tube) I seem to remember reading here
>that someone recommended 4-5 hours on the filaments before
>applying B+ .  Does that sound right?
>
/  There is no such statement on the tech spec sheets.  If a seal is 
leaky, the tube is history.  

cheers, Jim

-  R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures.  
end


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