diyAudio (
-   Tubes / Valves (
-   -   Simple heater question (

athos56 27th May 2009 03:59 PM

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+)


zigzagflux 27th May 2009 04:01 PM

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.

athos56 27th May 2009 04:58 PM

Thanks. A simple diode, half wave rectifier would be sufficient? So rectified bias tap to Heater winding CT's to PSU ground bus. Correct?

zigzagflux 27th May 2009 05:24 PM


athos56 27th May 2009 05:31 PM


All times are GMT. The time now is 11:25 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2