[AMPS] Adjusting fil voltage

[pmarkham]

>Actual numerical voltage value is not that important, I just turned it down
>to where power output dropped off and went back up about .1 or .2 volts
>(reading secondard voltage).

€  This is the right way to adj. the fil. potential for a thoriated 
tungsten cathode.  One really doesn't need an accurate fil. voltmeter.  
Howeven, this method can destroy heater/oxide-cathode type tubes.

Can? By what mechanism, if the designed filament voltage is not exceeded?

                         TIA, Pete/wa4hei
  

  The meek will not inherit the Earth. 

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