It’s a reverb effect using the Belton BTDR-2 digital reverb brick, but it also throws in a PT2399. Might be interesting.
Update (19.08.2013): Forgot to include a link to where I found the schematic, which was here.
Update (20.08.2013): There was something wrong with the layout image file, but I think it’s sorted now. Thanks for letting me know.
Update (12.09.2013): Told you I’d fix this the other day and of course I forgot. Anyway, thanks to johnk for spotting the error and verify the circuit as working.
Note: This one is experimental.
Accutronics updated their Belton Digital Reverb unit (BTDR-2) and made it much smaller. It also has a different pinout from the old version. I was asked to update my old layout, but I thought I’d try something a little bit more exciting while I was at it.
I put together a pretty straight forward schematic based on the version 2 datasheet circuit with the same embellishments as in version 1 (from the D-Verb schematic from GGG). But having two outputs it became apparent that true-bypass wiring would be hard without employing either a 4PDT or some additional switching circuitry. Therefore I decided to put this together as a buffered effect, and the general ideas here were borrowed from Merlin B’s “Small Time” delay. So the intention is for this to be a buffered reverb effect with mono/stereo output and tails.
It looks good on paper, but I realize there’s much for me to learn still. But rather than leaving this on my shelf for a month or two while I source parts and give the build a try I figured I’d put it up here for the brave ones among you to have a dig at right away.
I’m fairly confident the vero layout follows the schematic at least.
Feedback appreciated if you give this one a try, as always 🙂
Update (18.05.2012): I built this one myself the other day and it worked beautifully. Verified 🙂
Update (26.12.2012): Finished this one today. Being in a pretty bad mood the end result turned out looking quite awful, but at least it works and sounds great. As you can see this was a tight fit in a 1590B. I had to bend the second set of solder lugs on the pot to make room for the board (with some insulation between, obviously). Also found out I had used a 2.5mm DC jack when the whole thing was completed and had to replace that, bleh. Anyway.
Recapping a few of the effects I’ve made recently here’s my take on a Digital Reverb circuit based on the Belton reverb unit. The layout worked great, but fitting the reverb unit in the enclosure I had at hand (I believe it’s a Hammond 1590S) proved a challenge. I ended up attaching it to the bottom of the pedal.