[R-390] Tube bulb temperatures

[Bernie Nicholson]

The best and most convenient way to measure tube bulb temps is with a =
Infrared thermometer they are quiete cheap and very accurate and u dont =
have to make contact with the glass I measured the temp of the radiator =
on my 4cx1000a  which is 3000 volts above earth the other day,  and heat =
sinks are also easy to measure ,the unit contains a Laser pointer  and =
electricians use them to measure the case temp of transformers on power =
poles without climbing the pole regards to everyone  73 s VK2ABN


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