In this video we repair and restore a Japanese Kikusui OP-31C vacuum tube oscilloscope.
*** Remember to always test for safe with a multi-meter or other reliable test device before you touch! Many mains electronics, especially vacuum tube equipment can use very high voltages!! ***
Link to spec sheet:
http://www.kikusui.co.jp/catalog/pdf/old_catalogs/1959/008_op-31c.pdf
Link to user manual and schematic:
http://www.kikusui.co.jp/kiku_manuals/O/OP31C_J.pdf
Patreon link: https://www.patreon.com/nfm