Scope

We have this old scope for the students. It’s been unused for a while as it behaved erratically and then stopped working completely.

After setting the trigger to a more or less sane value I had something on the screen but the controls where flaky. A heavy dose of our deoxit equivalent and twisting it sprang to life. I adjusted the dc offset (drifts a bit while warming up) and matched the channel gains as much as I could and called it a day.

Fixing a Hitachi V212 oscilloscope

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