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The Blue Velvet Line Preamp with 7193 instead of 6SN7


2008-05-20 12:11 am
The Blue Velvet Line Preamplifier
A DIY Project
Design by Dick Olsher and Kara Chaffee

The Blue Velvet Line Preamplifier

I have a stash of 7193s, I was thinking about using 4 of these instead of 2 6sn7s in the project.
I've been told the 7193s are like 1/2 of a 6SN7 with mu=20 and sound better than 6sn7.
Another option is two use 2 7193 in first position a one 6sn7 in the second position.

Your comments appreciated