What an improvement! I can't wait for this to breakin a little. Now I want to mod. everything.
List of parts I changed out:
R1 & R101
R2 & R102
R3 & R103
R9 & R109
R11 & R111
C1 & C101
C5 & C105
C7 & C107
D1 & D2
I used Hovland caps.,metal film 1% resistors,and hexfred diodes.
After a month or so,I will do a second stage mod. The amount of work that can be done to this pre. is endless.
Tim