Tech oscilloscope TO-3 1ch 300kHz 9tubes 1968 Japan repair teardown

Описание: really cute one channel all tube vintage scope, bandwidth 300KHz, leaky capacitor in blanking circuit made the trace go dim after a few mins when it get hot. easy to find and easy fix, I also recommend to change the rectifier tubes to silicon diodes, thanks to radiomuseum for schematic.
Thanks to radiomuseum for schematic.
--
#oscilloscope
#vintage
#repair
--
I use auto generated subs, so if you find errors worth fixing, please comment with the time in the video you saw the error, i will be happy to fix it. This also apply to the Danish version.
--
(Thanks to all my Sponsors / Traders / Swappers / Sellers / Buyers, without your support and constant flow of cool items in/out, none of this would be possible)