#1
I have a Fender 65 Super Reverb Reissue that I've been tweaking. The biggest change was replacing the stock Jensen speakers with Webers.

I know that switching from the stock 12AX7 preamp tube to something like a 12AT7 will give a different sound, but I'm wondering if there's other tubes to try, or even if the same model number tubes from different manufacturers have any profound effect.

Does anyone have any experience with this?
#3
Use the same type (ie. four 12AX7 tubes and two 12AT7 tubes) but hunt down some RCA ones, especially if you are in the US where they are still quite plentiful.
Gilchrist custom
Yamaha SBG500
Telecasters
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100


Cathbard Amplification
My band
Last edited by Cathbard at Dec 23, 2013,
#4
Thanks for the replies. Are the RCA tubes just better quality, or do they give a different sound?

I would think that something that's designed to pass a certain voltage, etc, would do so the same way as another tube with the same number, but I've been wrong many times.
#5
They are simply better in all aspects. If you want to capture the sound of the originals, old american tubes are a good place to start. Plus of course, they will last longer.
Gilchrist custom
Yamaha SBG500
Telecasters
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100


Cathbard Amplification
My band