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Simple heater question
Simple heater question
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Old 27th May 2009, 04:59 PM   #1
athos56 is offline athos56  United States
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Default Simple heater question

Is it kosher to lift heaters by hooking the filiment windings CT to a 50v bias tap from another transformer (vs. making a divider from the B+)

Thanks.
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Old 27th May 2009, 05:01 PM   #2
zigzagflux is offline zigzagflux  United States
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No problem at all. The assumption is you will rectify and produce a stable DC reference. You wouldn't want to just tie it to 50V AC. Also assumes the CT of the winding is essentially circuit common.
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Old 27th May 2009, 05:58 PM   #3
athos56 is offline athos56  United States
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Thanks. A simple diode, half wave rectifier would be sufficient? So rectified bias tap to Heater winding CT's to PSU ground bus. Correct?
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Old 27th May 2009, 06:24 PM   #4
zigzagflux is offline zigzagflux  United States
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Exactly
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Old 27th May 2009, 06:31 PM   #5
athos56 is offline athos56  United States
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Thanks.
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