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: Standby/Operate Switch on my Cary Super Amplifier (AE-25)

It blocks the return current from the rectifier/filter to the transformer, if that helps.

The tube heaters still work, but with no HV current, no output is produced. The tubes are not as hot, and the cathodes do not suffer from ion bombardment, so they should last longer. There is no warmup time, since the cathodes are already hot, but there is a high transient current as the filter caps charge up - as with solid state rectifiers.

Incidentally, the switch will arc internally on opening because of the high DC voltage, in addition to the high transient current when closing, so it needs to have a high current rating and will eventually need to be replaced if used frequently.

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 © 2024, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]