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June 13th 07, 12:03 AM
posted to rec.radio.amateur.boatanchors
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tube-noob question
On Jun 13, 8:11 am, " wrote:
On Jun 12, 5:00 pm, "Ross, NS7F" wrote: In a circuit with two 6.3V tubes, can I just series the filaments so that I can use a 12-13.8V supply? Or are there subtleties that I'm missing? Thanks, Ross NS7F Depends on the tubes . If the two are same type ,you can series them ,no problem.. If the two tubes draw different current,then you can use a parallel resistor to equal the current in each tube...Old radio amateurs handbook is a good source fr this inf... GL W4PQW hi yes i agree with w4pqw........ bob vk4la |
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