

Pete Cornish will give you chapter and verse why they are shite and what they do in terms of tone suck when in a chain but switched off. Jester does basically the same, but about 4 times better. If you want Sloe Gin in a box, get a Jester. If anyone wants mine, email me this is one of the staple Gilmour pedals, and it's still a very good pedal, yet I think they're crap compared to the Kingsley Jester, which is in another league. Congrats on the BK Butler Kev, it's one I'll never sell! I feel that it's easier to get the "violin" tone with that particular tube. The 12AU7 also tames a little of the spikey-ness of the JJ 12AX7. Butler stopped producing this line I moved to Mesa Boogie. cept dates back to 1979 when he introduced the original Tube Driver pedal. ProValve is an all-tube powered version of the classic Tube Driver amp (model 752). ProValve is the original brainchild of BK Butler. I used Tubeworks and Mosvalve exclusively for years. Congratulations on your purchase of the ProValve 60-T.

Butler designed, tested and built the Tubeworks line for tone and dependability. There is so much gain in these that you actually get a much more musical and usable range with the lower gain tube. The Mosvalve 962 is arguably the most musical sounding power amp ever built.

Get a feel for the pedal with that tube but IMO I heard a DRAMATIC improvement in mine with a NOS JAN 12AU7. This is for For Parts/Repair.I'd prefer local pickup, as shipping heavy amps can be a pain but will ship if necessary. The tube inside appears to be a JJ ECC83 - is this a 12AX7? Up for sale is a used Tube Works Genz Benz BK Butler Dual Twelve 7100 MosValve 2x12 guitar combo amp from the 1990's. It arrived today!! I am looking at it now in my office - can't wait to get home and crank it up. Find great deals on the Tube Driver on Click Here queryBK+Butler+Tube+Driver&aid.
