HP 182C Oscilloscope Repair - Part 4: HP 1821A timebase really tough debug

We continue the repair of the 1821A horizontal plug in, which turns into a bit of a nightmare, including the release of magic smoke. But we get the better of it.

HP 182 Repair Playlist: https://www.youtube.com/playlist?list=PL-_93BVApb58rsjI0icp8-iY0SWT_n8aA

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"Elevator Music" Credit: Crinoline Dreams by Kevin MacLeod

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