Pedal Martyr Marshall Valvestate vs8100 preamp

[andregarcia57]

hey guys
Does anyone have a tagboard of this pedal The Martyr preamp/distortion pedal?
puts the classic 1990s Marshall Valvestate vs8100
thanks
André

[fx-fidden]

I don't know if we can find Martyr pedal schematic, but maybe we can start from the original Marshall Valvestate vs8100 schematic.

Do someone have a clear and easy to read schematic of the amp?

[Sensei Tim]

That's my pedal ;)

use the published vs8100 schematic. there's nothing exotic going on in it. i used TL072 opamps.



edit old photo. i'm using I/O boards with integrated in, out, and power jacks.

[andregarcia57]

I understand a version with j201 instead of ecc83? How much positive and negative voltage?

[Sensei Tim]

The opamps run +/-15v

The jfets run 15v unipolar.  There was no benefit to running them at +/-15 v

[andregarcia57]

Thank you very much, in this case I only want to do the OD2 channel, and I also intend to do a boost before OD2 for extreme sounds