I uncovered two ancient RF Thermo Couple Meters this evening, I had put them
away some years ago in anticipation that at some point I might want to
measure RF amps. They are identical, made in 1940, Ref No. 10A/8479. Full
scale 2.5 amperes, noted "for Radio Frequency Only". They are of what I
would call "light construction" not the heavy duty construction that one
associates with the better products made for WW II.
How might I calibrate them? I have some excellent calibrated resistors but
they are in general a little small to get a couple of amps into them without
some residual damage. Is some 60 Hz a little to low "for Radio Frequency
Only"? If anyone has a simple process I would appreciate hearing about it.
Thanks in advance.