LDM
00:00 - Intro
00:19 - VG1000J unknown part (actually VQ1000J)
01:46 - Schematic diagram overview
02:38 - Power supply
04:31 - Modifications for 115/230V 50/60Hz
07:07 - AC-DC converter assy
08:03 - Temperature controller
10:22 - Crowbar circuits
11:42 - Logic circuits
14:28 - Capacitive probe fontend
Notes:
The supposed VG1000J is actually a VQ1000J:
https://www.vishay.com/docs/70226/702...
Blog:
https://mwblog.fr/ldm364/