Home Tube DIY Asylum

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

Initial burn-in....







To me it is amazing the agreement of LT Spice nominal bias prediction vs. actual measurements (i.e. I have found less than about 5% discrepancies w.r.t. sim world).

For burn in I am just using my cell phone (and no feedback, as I planned 6 dB of GNFB but, right now, I do not feel compelled to try).

There in no hum at all and even by switching on and off neon lamps in the room there is any click coming from the speakers.

This is my first time that I do not use any pot for bias adjustment: the fixed bias comes directly from the filtered dual output of the auxiliary small toroid and series PP topology of the output stage does the rest.


This post is made possible by the generous support of people like you and our sponsors:
  Atma-Sphere Music Systems, Inc.  


Topic - Initial burn-in.... - 6AS7_6SN7 03:24:48 02/10/16 (3)

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.