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Dekatron · 5th Apr 2020, 4:37 pm

Could you please check two things in the circuit diagram, I've redrawn the circuit diagram some years ago (in 2011) for a friend who wrote an article about it. He and a friend of his traced the circuit diagram in their two AVO VCM Mk IIs and found the the Anode link was positioned between thw wipers of SHba and SGab and also that the diode connected to R3 had its anode connected to R3 and its cathode to SGab.

I've never owned an AVO VCM Mk II so I don't have anything to compare with so it would be very kind of you if you could check these so that we can either see if there are different versions of the design (but the diode must be connected in teh same way I think).

/Martin

5th Apr 2020, 4:37 pm	#19
Dekatron Octode Join Date: May 2009 Location: Linkoping, Sweden Posts: 1,465	Re: AVO VCM MKII restoration starts Could you please check two things in the circuit diagram, I've redrawn the circuit diagram some years ago (in 2011) for a friend who wrote an article about it. He and a friend of his traced the circuit diagram in their two AVO VCM Mk IIs and found the the Anode link was positioned between thw wipers of SHba and SGab and also that the diode connected to R3 had its anode connected to R3 and its cathode to SGab. I've never owned an AVO VCM Mk II so I don't have anything to compare with so it would be very kind of you if you could check these so that we can either see if there are different versions of the design (but the diode must be connected in teh same way I think). /Martin __________________ Martin, Sweden