Hi everybody,
does anyone know what kind of tubes Keith uses for his amps? Does he use the usual Fender tubes or did he change them for example to Mesa Boogie tubes?

I think the closest we got to that subject, can be found in this thread:
[www.iorr.org]

Okay! Many thanks for your answer!
Do you know if it is possible to replace a original Fender Blues Deluxe speaker with the Celestion speakers, that you discussed in the other topic? I ask because the original ones have 40 Watt and the Celestions more.

If the new Celestion can handle more power, then there's no problem.
the sound will change though, b/c a full driven speaker adds some own sound.
good or bad - thats up to you.
just make sure the impedance matches. it's 8 ohm, I think.

Using Celestions' should be no problem Henrik. As the esteemed open-g points out make sure the speaker impedance matches which is indeed 8 ohms. I have a Blues Deluxe and its a nice amp once you replace the master volume and volume pots with audio tapers as well as swapping the input jacks! Rock on!