UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Heathkit OS-2 Oscilloscope

ronbryan · 19th May 2021, 10:05 am

You could look at what Telequipment did for their C2 plug-in for the D43 scope. I've attached a snip of the circuit. The full C2 manual is available on Jonz Valve Page if you want further information.

It is a FET and transistor amplifier. DC drift should not be a problem as I expect the Heathkit C2 is AC coupled only. The transistors are supplied from the 235V HT via a dropper and zener.

Ron

19th May 2021, 10:05 am	#2
ronbryan Octode Join Date: Jan 2003 Location: Guildford, Surrey, UK. Posts: 1,960	Re: Heathkit nOS-2 Oscilloscope You could look at what Telequipment did for their C2 plug-in for the D43 scope. I've attached a snip of the circuit. The full C2 manual is available on Jonz Valve Page if you want further information. It is a FET and transistor amplifier. DC drift should not be a problem as I expect the Heathkit C2 is AC coupled only. The transistors are supplied from the 235V HT via a dropper and zener. Ron Attached Thumbnails