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EFJ devices bulldog 10k wattmeter model 1010k2r?
- Thread starter 427NJ
- Start date
To the best of my knowledge, Carl never came up with one. Sold the last one from our junk pile on fleabay. Had the usual Bulldog fatal flaw, a seized needle. Would run into an obstacle halfway up the scale and stay there until you slapped it. The meter movements were military surplus, sealed units with a glass window. When Carl broke the glass to change the scale, he opened the mechanism to contamination. Sooner or later a tiny particle of magnetic grit/filing gets into the gap between the moving coil and the magnet core. Blocks movement thereafter.
73
They looked cool. Had a friend who had one. Seemed to work okay but a couple of the scales were out of calibration. Never saw inside it but assume it had adjustment pots and could have been recalibrated so different scales would show the same reading.
Every
single
toggle
switch
had its own trimmer pot. Each scale had to be calibrated separately. Does rather create the possibility the separate scales won't agree without being really methodical with the calibration.
73
single
toggle
switch
had its own trimmer pot. Each scale had to be calibrated separately. Does rather create the possibility the separate scales won't agree without being really methodical with the calibration.
73
Well duh. What's the use of having a meter showing 85W on the 100 Scale and 160W on the 500 Scale from a 100W signal ? ;-)