Tube Amps / Music Electronics
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|previous: GFR You are using JFET switching, right... -- 5/28/1998 7:37 AM||View Thread|
|5/28/1998 9:16 AM|
|Daniel R. Haney||Re: tubescreamer distortion bleed-through|
The distortion bleed-thru is more dependent on
the Drive level in my limited experience.
>1) Try compensating for the additional gain by attenuating >a little before the JFETS.
BTDT. No effect.
>2) See if the led is not loading switching voltage. If so >use a transistor buffer to isolate the LED from the >switches.
!! Will do. I am concerned that because the ground
is synthesized from two 10K resistors, there is no
good way to get rid of the distortion bleed-thru
when using higher threshold diodes like LEDs.
>3) Try substituting the JFETS for ones with lower threshold
>voltages. JFETs doesn't trun off that much with -4.5V. Most >need about -6V.
Urg. back to the selection guide.
> 4) Remove the JFET switching and wire a true bypass stomp > switch like the link in RG's reply.
I'm not sure this is practical for a TS-5 soundtank
enclosure without a lot of duct tape and Bondo,
but will consider it.
|gus I have modified a number of ts5s an... -- 5/28/1998 11:15 AM|