Reverb/Resonance schematic?

[GammaFlex]

So I have recently become entranced with the idea of an analog resonance pedal. Similar to the Last Gasp Misty Cave (love that thing) and I want to build one. But all I can really find is either a delay or a straight up reverb.

anyone know of anything that's similar to that? Here's a vid showing what it does

https://www.youtube.com/watch?v=Ed53uohqGbw

I just really want that "chamber" sound it has in my rig. So if there's a relatively simply schematic/project I'd love to hear about it.

[jtn191]

sounds kinda like a ring modulator like Catalinbread's Heliotrope

[selfdestroyer]

In some videos it almost sounds like a Ersatz Verben reverb made from a PT2399 with some kind of feedback loop. The pseudo reverb is a fun easy project that you could bread board up in a couple on minutes to play with.

Cody

[jtn191]

I take back what I said before...it sounds in some settings like a synth filter into reverb and some kind of feedback

[gordo]

Sounds kind of like an Electric Mistress using the filter option (LFO taken out).  I'd bet Brian's board would get you in the ballpark.