WW2 Canadian Wireless Valve Testers

[Mike K]

Interesting about the British versus North American valve sockets. Right from the beginning of local military wireless production here ,around 1939, they decided to use the North American standard valve base configuration. Who made that decision I don't know .The 11 set (Aust ) and all of the other wartime built sets I've come across utilize the North American valve configuration.

[David Dunlop]

The Adapter Case has now received a coat of Satin Flat Black Base. Once it has cured for a bit, the final Wrinkle Black will be applied.

David

[Chris Suslowicz]

Originally Posted by Mike Kelly

Interesting about the British versus North American valve sockets. Right from the beginning of local military wireless production here ,around 1939, they decided to use the North American standard valve base configuration. Who made that decision I don't know .The 11 set (Aust ) and all of the other wartime built sets I've come across utilize the North American valve configuration.

I suspect that was a purely pragmatic decision. America is closer to Australia than England, there would be far less of a threat from enemy action (at least, initially), and England couldn't make enough wireless sets for its own use anyway.

There was almost cetainly existing commercial trade since the AWA manufactured version of the WS19 used the Australian (I assume) versions of the American valves rather than the UK/US market ones. (The usual "dominate your market by making your kit dependent on your own manufactured parts" trick.)

Chris.

[Mike K]

Originally Posted by Chris Suslowicz

I suspect that was a purely pragmatic decision. America is closer to Australia than England, there would be far less of a threat from enemy action (at least, initially), and England couldn't make enough wireless sets for its own use anyway.

There was almost cetainly existing commercial trade since the AWA manufactured version of the WS19 used the Australian (I assume) versions of the American valves rather than the UK/US market ones. (The usual "dominate your market by making your kit dependent on your own manufactured parts" trick.)

Chris.

Hi

Yes that pretty well sums it up. The AWA 19 set was fitted with valves such as the ..6U7G as rf and if amps ..AWA made their own valves branded as AWV . I read an interesting article by a chap who worked at AWV , he described how they modified contemporary US made valves to suit the local Australian manufacturing conditions.


The little infantry 108 sets had those short squat GT series octal based valves

[David Dunlop]

Sorry, Bruce. Another measurement request, which I think will be the final one.

How much cable did they provide between it’s exit point from the case to where it is clamped to the octal plug?

No rush. Whenever you have a chance.

David

[Bruce MacMillan]

6.5". With the TV7 tester it is enough to bend around and fit into the clip.

[David Dunlop]

Thank you, Bruce. Much appreciated.

David

[David Dunlop]

All necessary socket holes on the cover have now been mapped out for drilling.

David