Home Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

That circuit is out of date for a few reasons




I now just use 4P1L into 4P1L. No need at all for the 300b. I have Alpair 10 speakers and a 2v input from a ES9023 DAC. Here's a better and updated schematic. I actually just use the single 4P1L output, though I have another amp with PSE outputs.

In response to "strident violins", Ale and I puzzled for a while over this. There was a hint of sharpness. What I've found is that this was in the filament supply. With a quite large choke input and a good quality EI transformer the sound got smoother. A lot of this is in the filament supply with filament bias. It's a lot more important than many of us thought at first. I'd say you have to hear a choke input supply into Rod's Regs to be able to properly judge filament bias.


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


Follow Ups Full Thread
Follow Ups
  • That circuit is out of date for a few reasons - andy evans 10:48:39 02/11/16 (0)

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.