Tone Bender MKII - Original Layout - What do you think?

[Nitefly182]

My build matches the most recent one posted except the 470 ohm resistor is a 1k and the 25uf cap is a 50uf according to the small bear schem. Thats just a power filter cap though so it shouldn't be a big deal.

[Electric Warrior]

the power filter cap varied a lot in vintage units...

[Electric Warrior]

OC81D version:

[yeeshkul]

very nice again!
I use 25k bias trimpot and 25k pot in series in my builds. First set the pot to the middle position and adjust the trimmer so there is 4.5V at collector. Then you can tweak the pot both ways over the full range of the sounds: gated - proper smooth - smooth and louder.
5k pot &bias res are fine to balance the temperature caused bias changes though.

[Electric Warrior]

thank you!
compensation for temperature related bias changes is exactly what I'm aiming for. but I have to admit a wider range can be very useful..

[frusciante89]

Hi everybody. I tried to build my own MkII ToneBender Professional but something it's not working. Before checking the components (maybe the transistor are gone!) I'd like to check the wiring if you can help me. I put a picture of the wiring I chose.....

Thanks for help, Andrea
http://www.megaupload.com/?d=U2ESAAL8

[Tsaddeous]

Hi everybody,

Any reason too put the 100k resistance in diagonal like this,or it's just for the reading ?

[Electric Warrior]

To keep the resistor flat while still using two adjacent traces. 

[Tsaddeous]

Ok,thanks !