SS effects loop for tube amp?

[oczad]

I have a amp i built that is basically like a marshall 2204 but with a 6V6 output. I want to insert a solid state loop either between the treble pot and master or cathode follower and tone stack. can anyone point me to a schematic of one with a proven track record? I know there are kits like the metro. but i have lots of parts and i could build something like this for a couple bucks so i'd rather not spend nearly $100. Thanks.

[J0K3RX]

Do a google search for kleinulator.. I think there are some post in this forum as well.

[oczad]

seen that but i'm looking for something simpler. Any others?

[J0K3RX]

just use a couple shorting/switched jacks...  buffer optional your choice

[oczad]

Thats what i have now but doesn't return a usable level from my DSP.

EDIT: never mind, decided to implement a tube loop.