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: Load Z

Only if you use the same operating point. That would cut the available power nearly in half; I don't think there's a big market for 4-watt 300B amps ... I have used 4K impedances with 2A3s, but I adjusted the operating point to 300v/50mA so it makes about the same distortion - and power - as the usual 250v/60mA/2500ohms. At the moment, I'm using a 16 ohm speaker on the 8 ohm tap, and I must admit I like it a lot. (The transformer was designed to operate equally well at 4K or 8K ohms.)

I do seem to recall the Ongaku used a 16Kohm output transformer with a 211. I don't recall the operating point though.

Also, a higher impedance makes the parasitic capacitance more critical, thus more difficult to design.

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

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 ]