WW2 Canadian Wireless Valve Testers

[Chris Suslowicz]

That adapter is going to cover most of the missing sockets. Left to right:

B9G (EF50 and others) RADAR IF strips, etc. and the WS19 & WS62.
Mazda Octal - most of the receiver and small octal-based transmitter valves.
B5 - T1154 PA valves (PT15), HV rectifiers in CRT displays.
B7 - WS 9 & 52 receiver valves and probably others.

There was an adapter box for the I-177 that added some of the later sockets but not the British or European valves. (MX-949U, I think.)

Chris.

[David Dunlop]

Thanks so much, Bruce.

I smell a Winter Project ahead!

I would think that adapter should work with most other sets of the time. All one would need is the settings for the tube to be evaluated to program one's tester correctly.

David

[Bruce MacMillan]

I do have a supplemental chart for the TV7 with reference to using the ED adaptor. It lists the settings for the CV # of the tube so a cross reference is needed. For example ARP4 is a CV1322. List is here:
https://frank.pocnet.net/other/Servi...CVnumbers.html

[David Dunlop]

Bruce.

When you have a chance, can you post the dimensions of that valve adapter box?

Thanks,

David

[Bruce MacMillan]

It's 6.5" L X 2.5" W X 1" D. Mounting frame is attached to the lid.

[David Dunlop]

Thanks for the measurements and photos, Bruce.

I have a 2-1/8” slot at the top of my Precision Tube Tester used to stow the cables. I should be able to use it to store a free standing version of this adapter quite nicely.

Trying to decide now whether to use an 8 conductor cable very similar to the one on your set, or a brown cloth loomed equivalent that looks like the Remote Supply Connector cable for the ZE-11 and ZE-12 52-Set Supply. Will probably pick up a length of each to see which is more flexible to work with.

Cheers for now,

David

[Chris Suslowicz]

I have the valve sockets for you, the only difference is that the B7 one is one piece moulded bakelite (i.e. does not have a metal mounting ring), the others are as per Bruce's photograph.

Octal plug is proving difficult - I've found chassis-mount ones (like a reverse valve socket) both with and without the metal mounting plate, but not a cable mounting type.

There's also the WS 52 connector - you'll need a thin 1/4" AF socket to remove the nuts holding the contact springs. (o.d. less than 0.38" to clear the recesses in the socket.)

I'll see if I can get them in the post tomorrow.

Chris.