Avo VCM163 adaptors

[Yorkie]

I made four adaptors for my Taylor 45D, namely, B4, B5, B7 and M.O. which I wrote up in an article published in the BVWS Bulletin in 2014. Such adaptors were originally available as accessories, but of course, rarely crop up and when they do, like valve-testers themselves, fetch ludicrous prices. The originals used a 10 pin socket on the 45D, but as I didn't need any adaptors with more than 8 pins, I used the Octal socket as octal bases are easily found. I scavenged  bases from duff octal valves, but later discovered that they can be bought new very cheaply from China. EG:

http://www.ebay.com/itm/4pc-8pin-Bakelit...1007865837

I've attached a few pics which might be of interest, including the wiring diagrams, which as has been said, are simply pin for pin - 1 to 1, 2 to 2 and so on. I turned couplers from plastic to  incorporate the valve-holders that I needed, and for the plugs. (As seen in the wiring diagram, I used the resistor colour code for wiring up, so as to minimise the risk of getting the connections wrong - brow red orange = 1,2,3 etc).

Hope that helps.