Another update...
I hauled by HT-37 to the dual-trace storage scope and inserted a 0.5 ohm resistor into the neutral side of the power supply.? Here's a little bit about what I found.
When the surges occurred when turning on the radio using its original power switch, they varied in amplitude from 9 to 24 A.? Here's an example of one at 9A:
Sometimes there was no surge at all, other than the higher current at the start due to the heavy load of cold filaments:
The groups.io editor isn't letting me include more than 2 images; I'll post a few more soon.
Cheers,
Halden VE7UTS
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