A gaggle of capacitors is en route from Newark \/ Element14, so until they arrive, the 514 is off the bench.\u00a0 I got enough to replace all bad caps in the power supplies, including the untested HV cans, just in case.\u00a0 ‘High Voltage Problems’ is a common utterance when speaking about these old beasts, so I want to be prepared to replace anything.\u00a0 I’ve been staring at the HV power supply schematic for the last week, and I think I’m ready to tackle it.\u00a0 I got a enough 630v film capacitors in .1, .01 & .047\u03bcF to deal with bad bumblebee caps as necessary, as well as 22\u03bcF 450v electrolitics to restuff some cans with.<\/p>\n
The plan is to replace all the bad caps I’ve identified, replace the rest of the missing tubes (which I have), then slowly bring it up on the variac.\u00a0 I’m not expecting a trace, but I would like to see a spot, which would indicate that the power supplies are somewhat working.\u00a0 after that:<\/p>\n
A gaggle of capacitors is en route from Newark \/ Element14, so until they arrive, the 514 is off the bench.\u00a0 I got enough to replace all bad caps in the power supplies, including the untested HV cans, just in … Continue reading