Electronics > Repair
Vintage Conar 255 Oscilloscope repair
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jk99345:
Hello,

I picked up this old scope for cheap at a hamfest recently, it seems to be mostly functional with a few issues. The trace seems to be slightly rotated (which I can probably adjust easily with the trace rotation), but the trace is also slightly jagged rather than a straight line. I also get huge spikes (as shown in the second image) when adjusting the volts/cm knob. I assume this could be due to the switch, so I will try to clean off the contacts and inspect the solder joints.



Thanks
jk99345:
The manual for this oscilloscope can be found here:

https://bama.edebris.com/download/conar/255/255.pdf
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