| ampage Tube Amps / Music Electronics |
For current discussions, please visit Music Electronics Forum. |
ampage archive
Vintage threads from the first ten years
| previous: SpeedRacer I've spent a lot of time with that ... -- 10/14/2000 1:39 AM |  |
|---|
Re: Fender Brownface "Harmonic Vibrato" (6G12A)
 10/15/2000 3:45 AM |
|
| steveR | Re: Fender Brownface "Harmonic Vibrato" (6G12A) Once you go brown, everything else will let you down! Speed turned me on to to the brownface circuit and it ROCKS. If you've got to have a Fender type trem, then this is the one to do. Yup, do the -A version. You don't have to waste the half stage either. On my recent project I used it as a post trem stage (actually the driver, but it's SE so I didn't need a phase splitter.) If you have a lot of preamp distortion before the tremolo it can have a kind of phaser effect, or like Speedracer said sort of Leslie-like. If you drive it really hard it seems to just get swamped out and go away. This is really nice for controlling dynamics and gain from the guitar. Back off the volume a bit and you get lush swirly tremolo. Crank it up and you've got a great lead tone with a touch of "phasing". My only wish with this circuit is that it could go slower. I've increased the values of the oscillator caps , and that helped a bit, but it has a tendency to just go away and stop oscillating if turned down too slow. The 3 meg RA pots are available from Ampwares, Hoffman, Clark Parts, and Angela, but good luck finding the 10meg RA. I found one at a surplus electronics store. It was actually s-taper which I didn't really like so I built my own "stepped" pot with a single pole twelve position rotary switch. good luck, steveR |
|---|---|
| Replies: |
| Mike B Hey guys, thanks a lot for all the ... -- 10/15/2000 7:06 PM SpeedRacer FWIW |