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Lux 300B SET hum after replacing PT
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Posted on May 2, 2013 at 14:35:31 | |
I've replaced the PT because the original was dead. New one is made on specs > Primair: 0-230V +scr Secundair: 400-0-400V 0.1A 400-0-400V 0.1A 3.15-0-3.15V 3A 0-5V 4A 0-5V 4A 0-5V 3A 0-5V 3A I replaced the transfomer and neassured voltages, but al are little high now, but the main problem is that there's a hum on both channels. Amp is working but hum is to loud. Anyone an idee what to do? regards Dirk |
RE: Lux 300B SET hum after replacing PT, posted on May 4, 2013 at 08:04:12 | |
Hi did you figure out what is wrong ? do you have have schematics or know how to get them for the FCUPS power supply? regards |