Home Tube DIY Asylum

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

RE: 4P1L preamp DIY

'The reason for the better sonic results with the choke, probably stems from the reduction in the upper harmonics, from say the 20th and beyond.'

I really have no idea how you come to that conclusion regarding high order harmonics although I can take measurements using a wave analyser or FFT if need be . In terms of measurement , I do not posses a DVM with the sort of resolution to take such measurements so an HP mV meter was used

As for the rest in cut and paste format . There is no feedback in the filament supply . This consists of LCRC to a Coleman reg (buffered CCS) taking the cathode connection from the 4P1L filament centre tap


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

Follow Ups Full Thread
Follow Ups


Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
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.