Home Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Tube DIY Asylum ]
[ Alert Moderator ]

RE: Is this feasible? Rectifying 6.3v for heaters




As promised here is the revised schemo for the Citation 4 regulated heater supply including the circuit for the LED which is now embedded in the plastic ON/OFF push button.

The LED is ballasted by the two 3 microfarad caps feeding the bridge. In addition to the caps being non-dissipative, the load on the transformer comes ~ 90 degrees out of phase with the heater load so it does not load the transformer when it is the supplying the peak current to the heaters.

I know this is a Tube DIY forum, but for completeness I'll look for the schemo of the MOSFET subwoofer amp which drove the need to regulate the supplies in the Citation 4.

Phil

This post is made possible by the generous support of people like you and our sponsors:
  VH Audio  

Follow Ups Full Thread
Follow Ups
FAQ

Post a Message!

 Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]