March 16, 2013
The Revibe, 6G15 reverb plus 6G12 vibrato
I've been intrigued with Doug's Revibe project ever since I first read about it several years ago. And then I was reinspired when he built a rack version. I always knew I'd have to build it some day. Well, some day is here! I built it in the same style as my Warbler. It all fits nicely in a 17" x 6 1/2" x 2 1/2" chassis.
The unit is very quiet. The reverb sounds great! Way over the top surfer stuff! And rich sound when used in moderation, which is how I like it. I'm not really sure how to describe the sound of the vibrato. It's not a pitch shifter, but it has a richness that I can only say makes the typical tremolo sound pale and one dimensional by comparison. This is by far the best tremolo I've ever heard. I highly recommend this project for anyone into reverb and/or tremolo.
Once again, I started on the drawing board with the layout, working strictly from Doug's schematic. His board was too long to work in my plan so I rolled my own with Visio. I really enjoy this part of the project. I spent a long time working on the board design. (Measure twice, cut once kinda mentality. You really don't want to mess it up at this phase.) There's a lot of stuff to consider. My board worked out to be 12" x 3 1/8". This size works great in a 17" chassis and gives a comfortable amount of space for other components. Makes interconnecting wiring a breeze. I've come to love this layout style. I'll never do tweed again!
I cut the chassis to 17" length because I wanted the reverb tank to sit on the chassis. Worked perfect for the layout I was after. The 8Ω reverb input jack is located near the power supply end of the chassis and the sensitive Hi Z reverb output lay just a couple inches away from the recovery stage. Very convenient.
After it was up and running, I added the blinky LED and made a few minor changes. Other than that, it's just like Doug's schematic. Here's a list of my changes...
I'm really pleased with the way this project turned out. The walnut end caps are the only dressing it will get. I rather look at this stuff than hide it in a pretty box. Here are some pics...
Download the latest revision of my schematic, full size board layout, and drill guide in a single PDF. Some of these changes may not appear in the photos above but they are all incorporated into my Revibe.
revibe.pdf (1.3MB) (Revised 12/06/2016)