[Amps] 4pr1000 heater voltage?

[2]

Andy -- According to Econco Broadcast Services, one method of determining 
optimal filament potential is to tune up the amplifier for max pep @ max 
drive at the nominal filament V, then adjust the filament V to the point 
just before pep begins to decrease.  This procedure shoud be repeated 
ever 500-hours or so as the tube uses up the carburized layer on the 
thorium/tungsten filament.

>Thanks to all who replied regarding the heater voltage on my 4pr1000
>
>Due to the various resistors I had sitting around here, I've settled for it
>at 7v.
>
>All I have to do now is try the HT, then a little RF to see if it all
>works...
>
>Cheers.
>Andy
>
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-  R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K, 
www.vcnet.com/measures.  
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