Home OTL Asylum

OTL, Output Transformerless Amplifier User Group.

RE: What are your readings?

Ralph, I believe the bass transformer has enough self-inductance to take itself out of the circuit pretty quickly above 2kHz. It cannot have much effect at all at 5kHz and above. My data suggest this, if I compare the AU90 transformer alone to the [bass + AU90] impedance readings at above 2kHz. With a 1.5mH inductor in front of it, the bass transformer alone gives 60 ohms impedance at 2kHz. Anyway, I am pretty sure Chuck (Throwback) is using an inductor, which is at least 1.5mH in value or higher.


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


Follow Ups Full Thread
Follow Ups

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.