Discussion at:
https://highvoltageforum.net/index.php?topic=476.0The Hameg 8122 is a programable universal counter / timer that has 3 inputs. Channel A and B from DC-150 MHz at 300 Vp-p and channel C from DC-1.6 GHz at 5 Vp-p.
I accidentally broke a knob off the instrument when moving and while I wanted to repair it, I might as well give a teardown of the unit. Finding a replacement part was not easy, but a cheap alternative solution was found.
Edit: I think I actually missed the high precision oven controlled oscillator. As it does not look like the one described in the manual. There is a black box bottom of the top overview that is marked Hameg and it is connected right after the front end.
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