|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
|
|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
In Reply to: differential phase splitter for the PP power ampilifier posted by RCA805 on September 14, 2009 at 21:50:59:
With that tube complement, I'd for an all-differential design.
Stage 1 would be an LTP splitter, using a 6SN7 with a CCS in the tail (requiring a negative rail for the CCS). Stage 1 would be DC-coupled to Stage 2, a 6SN7 differential driver. Stage 2 would be cap-coupled to Stage 3, the 2A3 PP output stage. Such all-differential designs have extremely low hum and noise.
You could apply balanced cross-coupled NFB between the plates of the 2A3 and the plates of the first 6SN7 if you needed to bring down the amp's OP impedance (better damping).
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: differential phase splitter for the PP power ampilifier - Ray Moth 09/15/0918:18:35 09/15/09 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
