• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

filament choke testing

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crazyfrog

Member
Joined 2009
Hi. I got recently a pair of filament chokes from a well known iron maker. Curiously, last year I ordered same type with same specs from the same maker but their size are quite different! I know gap and laminations can make the difference but this is a surprise...A friend suggested me to check the ripple as a start.
Any suggestions?
Thanks
Pierre
 
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