Tube DIY Asylum

RE: The 300b is one of the most linear amplifying devices ever invented

69.19.14.42

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Tube DIY Asylum ]

Hi DanL,

I agree totally with your description of how the circuit operates with the choke. The choke allows the bottom triode to operate in unloaded, full-mu mode, nice flat load line, and the top triode acts as an ideal cathode follower. The combination is linear and has low Zo.

However, I think that even if it's just semantics, what we just described is closer to the operation of an ideal mu-follower and less like SRPP. It doesn't work in push-pull, and you can verify this by measuring the current source vs current sink capability. Where is the current sink path?

Michael

Follow Ups:

Post a Followup:

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.

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Tube DIY Asylum ]
[ Comment ] [ Edit ] [ Delete ] [ Copyright Warning! Click for Details ]
[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2008, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]