[TA Forbes]

Hello Jerry/Arran/OD:

Jerry, I must contend that more info, even if it strays a bit from the original subject at hand, is always valuable. After collecting radios for greater than 40 years, I still learn some good tidbit from ramblings like those found in this thread, especially when it comes from "real deal" techs, like K7Sparky.

OD: lots of info here about a lot of stuff. Some of it may not apply to your current issue, but if you take the "other stuff" here and stow it away in your mental "bag of trircks," it will serve you well for future issues.

Arran: Triplett made two mutual conductance testers, the Model 3423, and the Model 3444. I have 3423, and it is a very acceptable performer for what it is. I have never owned a 3444, but it is a "laboratory" grade tester, and in my opinion a better instrument than the Hickok 539 series.
The Brits had some excellent testers made by AVO. Don't know if any of them made it to the Canadian Forces. When I worked with the Canadian Parachute Regiment I noted that they were equipped with an interesting combination of Brit and US gear.