A reverb pedal without Belton brick or FV-1?

[samhay]

If you make this with 3 PT2399s rather than a BTDR, then I think that is certainly different enough.

You can make the delay time of 1,2 or 3 chips variable, perhaps using A10k pot(s) and some minimal series resistance.

As bool said, you can also make the feedback variable (which would be cool). In reference to the patent schematic (http://www.diystompboxes.com/smfforum/index.php?topic=108591.msg990275#msg990275) you want to vary the signal into one or both of the 'GF' 11k8 resistors, which you could do just like all the PT2399-based delays out there.

[deadastronaut]

Why do you want a 4th PT2399? There is plenty enough reverb in a BTDR chip for most peoples liking.

because we could.. 

but yes there is ample enough as it is..

[anotherjim]

I work that 74HC14 LFO out at 8Hz. Is that about right?
That's a fairly fast vibrato rate, although it looks to be fixed at a shallow depth.
But, it does seem rather noticeable in the few examples I've heard. Would removing it destroy the strength of the reverb?
Just seems odd to a fix vibrato into a reverb?
Also, I'm not too keen on the top end of this reverb. Seems to make picking noise sound like a flurry of clicks rather than the start of a note.

Maybe I've heard the wrong demo's.

[Adventure_Audio]

Guys, the hand-drawn schematic worked!! I just breadboarded it and it gives a something near to reverb, but after changing pin6 resistors with trimpots and tweaking them a bit it worked great!

I just put it all on the board today and am getting a very faint guitar signal mixed with some crazy oscillation. I have triple checked my connections and they all match the hand drawn schem and your details with the Schmitt trigger and trim pots. Which schem are you implementing to get signal from the guitar->brick->out ?

Any other advice? Also I am unsure on how to calculate the Schmitt trigger freq but it would be fantastic if we could replicate that using an op amp configuration.

[theengine2r]

Is this thread still on going??
Recently i've build the hand drawn schematic, yeah it's work but need a little mod in my built. Here's demo of mine  .