TBR: A Reverb-ish Thing

[Ripthorn]

It's fair to say that I have been on a bit of a quest to come up with a variety of DIY-able reverbs. I did the T60 Reverberator a year and a half ago, the Spare Room and Riptide reverbs were last year, and now, the TBR. It stands for Tiled BathRoom and started life as an Ersatz Verben, but I did a few large changes to it. It's a single PT2399 affair, so it's more like a slapback with fixed feedback and delay time, but it gives the impression of playing in a super reverberant environment. The notable changes from the Ersatz Verben include:

- Using the unused PT2399 opamp as a summing amplifier to make the mix control more to my liking
- A 470nF and white LED from near pin 6 to pin 8, as discussed recently on this forum
- A boost stage at the end to get everything up to unity gain, since the PT2399 opamps can't provide enough headroom

It's nothing earth shattering, but it's a super easy and fun build. Schematic and demo below. Full details, schematic walkthrough, board files, etc. at https://scientificguitarist.wixsite.com/home/tbr

[ppluis0]

- A 470nF and white LED from near pin 6 to pin 8, as discussed recently on this forum

Hi Ripthorn,

Can you talk about the effect to do this connection ?

Or, may you indicate where those discussion can be read ? I can't found anything about this matter searching the forum.

Thanks in advance,
Jose

[Ripthorn]

Ah, it was the other forum, not this one. Here you go:

https://www.diystompboxes.com/smfforum/ ... c=128518.0