equinox II add LFO for moduation

[brujo]

Hi there, I buit an equinox II reverb and it works at first try so I am very happy but I would like to add an LFO for modulate the signal..how can I do it? Can anyone suggest a simpe lfo circuit for this ? 

ps. can I just use a bigger pot for a longer reverb time?

cheers

[Ripthorn]

I actually just did a new reverb project based on the Equinox II, but with modulation and a little longer/richer delay time. You can find schematic, build documents, board layout, etc. here: https://scientificguitarist.wixsite.com/home/spare-room. I even have a couple spare boards if you are into the surface mount thing.

[bluebunny]

The pot is a "mix" control.  It doesn't affect the reverb time per se.  (The delay times on the two PTs are fixed.)

What do you want to modulate?

(Edit: can you believe I posted this without reading Brian's reply?  Coffee.  Need.  Coffee.)

[brujo]

basically I want to do what ripthorn already did. I want  modulate repeats...I guess.

[Ripthorn]

If you read my page for the project, it breaks down how it all works and how to do it. You can adjust the lfo to taste, but I spent a good while dialing it in. You really only need subtle modulation to make it work well.

[brujo]

how can i change rate and depth of the lfo?

[Ripthorn]

R29 controls the rate, with smaller being faster. The ratio of R30 and R31 control depth, but you should aim to keep their sum to around 680k-1M to prevent loading on the PT2399 pin 6, which I discovered can have some interesting problems if you don't.