Richard Moore skrev: > > Magnus, a few thoughts that have most likely already occurred to you -- > 1) HV supply failure -- I think it will be around 2 or 3kV if working.
It's 3,9 kV. There is a test point, but I need to dig up a very old HV probe lying around somewhere in the junk. Finally I get some use for it... maybe > 2) X or Y deflection amp has failed, moving the trace offscreen. The X deflection amp seems to work at least. > 3) CRT heater dead. No, I have a very faint ligthening up on the screen which the horizontal control can move on or off screen. I need to shield the screen from light to see it. It's so out of focus that it hits the full screen. Could be an HV issue, but I am not sure at this moment. > Either 1 or 2 should be easy to detect. Having the manual will > certainly help with repair. 3, however, is really discouraging. Certainly. I have enought of large scopes at a friends place to be able to salvage tubes before being tossed. I even think he still has the spare tube NOS. :) Cheers, Magnus _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
