Home SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

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

RE: If 50 is the New 40, than 46 is the New 45!

"Putting aside the current rating, have you measured this amp's B+ voltages with the 46 in place? I'm afraid it is running very hard in this 45 circuit, without modification."

Hey Michael:

I don't know the B+ voltages, so that's entirely possible. Here are the "before" and "after" measurments of my RCA ST-shape 46s that I have been using for about two months now (where 50 is the minimum good level on my TV7 tester): Tube 1 99/92, Tube 2 90/88.

At first I was a little bit alarmed that Tube 1 had dropped from 99 to 92, but after thinking about it, it's probably no big deal. Not that you want to run a tube harder than neccessary, but at least they are inexpensive!

I think you will be very happy with your 46 optimized amp. Of course that assumes you have the proper high sensitivity speakers! Is this amp going to be SE?

Gerry

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

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 ]