Quote:
Originally Posted by Ed_Dinning
Hi Tinker, you should be able to run the filament supply up and then connect a voltmeter between cathode and grid. If the valve has emission you should get a small voltage reading.
Then you can think about other power supplies to try it in anger.
Ed
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So - reading the link above it seems the filament runs at about 14v ?
If I apply that to the filament with a variac and connect a voltmeter to the other two pins I should get a reading .....
Am I on the right track ? I shan't do anything just yet .......!!
Thanks for the help
