Home General Asylum

General audio topics that don't fit into specific categories.

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

It depends

on the amplifier design. My Marantz 8B has a warning to not run with no load. In fact I tried using the 16 ohm tap a couple times with a speaker attached and the output tubes started to run away (not enough feedback?). I caught that quickly. The Marantz in ultra linear pentode operation is essentially a Williamson circuit and has a feedback winding on the output transformer - no feedback (i.e. no load) means the amp can go full on even with a very low noise signal on the input (that is the definition of unstable). Obviously, this does not apply to non feedback tube amps (most).

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 ]