Home Tubes Asylum

Questions about tubes and gear that glows. FAQ

Hi Al,

We used the 5.? volt filament winding - used to heat the ditched GZ34 - to supplement the heater supply to the new input and driver tubes. How I don't fully understand.

click the link below

Yes, the LEAK power transformers have always run hot.

OTOHand the PSUs aren't powering a pre-amp and I am told that we are within the limits of the PTs.

Cool running PTs would be nice. As I see it the two options are;

i) a new higher rated PT for each St 20 - bespoke type - with a good bit more in reserve for both the heaters and for HT - AND still fit into the available space and bolt holes. Even the covers. OR

ii) supplementary PSU chassis - one for each St20 - using off-the-shelf PTs and parts - to supplement the existing St20 PTs.



Warmest

Tim Bailey

Skeptical Measurer & Audio Scrounger




Edits: 04/30/14 04/30/14 04/30/14

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


Follow Ups Full Thread
Follow Ups
  • Hi Al, - Timbo in Oz 05:10:48 04/30/14 (1)

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.