[AMPS] 6 volts on a 3-500Z filament

[Tom Rauch]

> Same thing happened to me Bill. Only the filament wire going to the choke
> was about 18 gauge wire. This caused about a 1.5 VAC drop from the
> filament xformer to the choke for the 3-400Z's. I was only able to get
> about 600 watts out when I was supposed to get 1KW.

I've actually seen people ruin tubes (8877's) by reducing filament 
voltage!  A metal oxide cathode tube can be ruined if you operate it 
very much below rated voltage, so remember lower voltage does 
not always mean longer life.


 
73, Tom W8JI
w8ji@contesting.com

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