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Andrew VK3BFA wrote:
On Aug 16, 4:03 pm, (Dave Platt) wrote: Now retired I'm trying to become active again. My TS-520S has not been on for 30 years. I don't have a variactor ( variable transformer ). KISS. Wire a 60w light globe in series, turn it on, let it sit for a few hours. Filaments OFF for this test. Havent used a variac for this for years - reason - its the switch on current surge thats going to kill old electros, and the variac has no current limiting whereas the light bulb does. You will see a brief "Flash" as the caps charge up, then maybe a dull glow, eventually, no light at all. ============================================== Don't understand the above. When using a variac starting at zero and gradually increasing the voltage there can't be any appreciable inrush current. I happen to have a 8 Amperes variac and would always use it to 'fire-up' a previously retired oldtimer (boat anchor) I have a rather large junk box with high capacitance value elcos and recently exposed them all to a 'zero to max working voltage' from an adjustable HV PSU. I do that once every 3 years. Frank GM0CSZ / KN6WH |
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