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Vintage threads from the first ten years

previous: Mark Cameron T.H.D was makeing these call them -- 8/22/1999 9:43 AM

Re: Yellowjacket?? black jack - Jester?

8/23/1999 5:11 PM
SpeedRacer	Re: Yellowjacket?? black jack - Jester? I still have a pair of these I pulled out of a client's Marshall.. the whole PSU (from bridge to filter caps) & OT went. Draw your own conclusions. They're about what you'd expect inside: a cap to block off the grid bias, and a big Rk (470-ohm I think) to bias the EL84's. It sure doesn't help that the tube will be way out in nearly cl B territory and running into about 1/2 of the proper load. They probably run & sound fine some of the time; I'm just not convinced that they're a great idea for everyone..

8/23/1999 5:11 PM

SpeedRacer

Re: Yellowjacket?? black jack - Jester?

I still have a pair of these I pulled out of a client's Marshall.. the whole PSU (from bridge to filter caps) & OT went. Draw your own conclusions. They're about what you'd expect inside: a cap to block off the grid bias, and a big Rk (470-ohm I think) to bias the EL84's. It sure doesn't help that the tube will be way out in nearly cl B territory and running into about 1/2 of the proper load.

They probably run & sound fine some of the time; I'm just not convinced that they're a great idea for everyone..