tube swapping?

[kungfujews]

I have a MK4 with older tubes and an F100 with new ones. They both run the a quartet 6L6s and 12AX7s - although the MK4 has 5 pre amp valves. Does anyone know if I'll be OK to swap the valves around for my next few gigs while I await delivery of my new set? :?:

 

[R_ADKINS80]

swap away dude.....boogie tubes can be used in any amp that uses the same type of tubes...especially another boogie.

 

[kungfujews]

Thanks for that...added peace of mind! - I did swap and my MK4 sounds even better (less lead channel noise)- if that's possible!

 

[sted]

How easy is it to swap from 6L6 to EL34? Is it literally just fit 'em and flip the bias switch? (I have a mark V btw!)

 

[kungfujews]

I can only vouch for the MK 4 Sted (no experience of the MK5)but I think you can put a matched pair of EL34s in the two outside positions. I thought Mesas were all fixed bias - so I'm not totally sure about that one! Better be safe than sorry and post a question in the 'tubes' section - I'm sure someone with more knowledge can guide you in the right direction.