I bought a Tek 475A off of Ebay about a year ago. I haven't had much need to use it but it worked fine the few times I have used it. Pulled it out this morning to work on a little DIY generator (from a floppy disk drive) I was working on. Probably should have waited to buy.
It worked fine this morning. I accidentally left it on and ran out for some errands. When I returned there was no trace.
Everything I try I cannot seem to get a trace. It powers on. The intensity is at max. I tried adjusting the Horiz and Vert position. The beam finder does not show the beam. I do notice a quick display (more of a dot) in the center of the screen as I turn on the scope.
I tried following through the manual and seem to have covered everything but I am not very confident in the operation.
Any other ideas of what to check?
I don't have another scope to fix it and my analog skill level is not exactly top notch. Do I now own a boat anchor?
It worked fine this morning. I accidentally left it on and ran out for some errands. When I returned there was no trace.
Everything I try I cannot seem to get a trace. It powers on. The intensity is at max. I tried adjusting the Horiz and Vert position. The beam finder does not show the beam. I do notice a quick display (more of a dot) in the center of the screen as I turn on the scope.
I tried following through the manual and seem to have covered everything but I am not very confident in the operation.
Any other ideas of what to check?
I don't have another scope to fix it and my analog skill level is not exactly top notch. Do I now own a boat anchor?
Last edited: