H.H. Scott 222 making popping noise @ turn-off

[Mr Boochie]

probably the switch arcing when it breaks the circuit. If there is a cap across the switch, change it. If there is no cap across the switch, try an 0.1uf cap in series with say a 100 ohm resistor located as close to the switch as you can get it. Should be a Y rated safety cap if possible but a 630v cap will serve for a test if thats what you have on hand.

or use one of these things, which is basically that in one handy package

QRL-Quencharc.pdf (paktron.com)

Those Paktron Quencharc items seem like good stuff.

 

[Pablodeux]

Yes, thank you for your advice. im i the process of chosing the right tools, various equipments like variacs. Reading threads and videos.

There are some videos you might find useful on the youtube channels for xraytonyb and blueglow electronics.

 

[VW1200]

There are some videos you might find useful on the youtube channels for xraytonyb and blueglow electronics.

i subscribed to blueglow. I check xraytonyb. Thanks