[Boatanchors] RF current sensor

[Roger Basford]

Hi All,

I've been looking without success for an 15 amp RF meter for my BC-939 ATU. 
As I'm not really bothered about a calibrated scale for the meter, just 
tuning for maximum output, I think that a current sensor driving a 
milliampere meter would probably be OK. I used to have a simple design used 
on a VLF TX using a toroid with a link passing through the centre carrying 
the RF current. Unfortunately, I can't find the circuit again. Anyone tried 
a similar method of replacing an RF ammeter?

Regards,

Roger Basford/G3VKM




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