VibroBot (Frantone Vibutron)

[jcpst]

The classic vibrato/tremolo misnomer aside, I had been looking forward to this pedal.

Tremolo is my favorite type of modulation. I had built a chorus, phaser, and flanger mainly to revisit them, but they’re just not my thing.

This one came right together. I drilled it a bit off center, but I can live with it. I noticed my big fat toggle switch was the same thread size as my footswitch, so I put dress nuts on both.

The aesthetic is kind of goofy, but I find the quirkiness endearing.

Blah blah… how does it sound? After a quick biasing by ear, great! The triangle, sine and square LFOs are all very usable. I was a bit surprised that the rate knob went slower with CW turn.

If I could change anything it would be just to slow down the oscillation a bit. I would like to be able to go slower, and I don’t need it to go as fast as it does. Maybe I’ll look into that.

 

[Bricksnbeatles]

Awesome build! Where’d you get the toggle switch? I have a bunch of them in on-on, but I’ve never seen them available in on-on-on for the large bat stuff

 

[jcpst]

Awesome build! Where’d you get the toggle switch? I have a bunch of them in on-on, but I’ve never seen them available in on-on-on for the large bat stuff

Thanks!

I got it from tayda. Here's a link:

Mini Toggle Switch 1M Series DPDT On-On-On

DAILYWELL ELECTRONICS - Get It Fast - Same Day Shipping

www.taydaelectronics.com

 

[Synchrony Pedalworks]

The classic vibrato/tremolo misnomer aside, I had been looking forward to this pedal.

Tremolo is my favorite type of modulation. I had built a chorus, phaser, and flanger mainly to revisit them, but they’re just not my thing.

This one came right together. I drilled it a bit off center, but I can live with it. I noticed my big fat toggle switch was the same thread size as my footswitch, so I put dress nuts on both.

The aesthetic is kind of goofy, but I find the quirkiness endearing.

Blah blah… how does it sound? After a quick biasing by ear, great! The triangle, sine and square LFOs are all very usable. I was a bit surprised that the rate knob went slower with CW turn.

If I could change anything it would be just to slow down the oscillation a bit. I would like to be able to go slower, and I don’t need it to go as fast as it does. Maybe I’ll look into that.

View attachment 78361
View attachment 78362

I really like the look too! The decorative washers are really nice and the color choice is fantastic.

 

[jcpst]

Thanks! I was going to do some labeling in green but didn’t want to wait to box it up!

I like to look at what the pcb is based off and incorporate some elements into my build.

 

[Mentaltossflycoon]

Thanks! I was going to do some labeling in green but didn’t want to wait to box it up!

I like to look at what the pcb is based off and incorporate some elements into my build.

View attachment 78371

I reversed the colors with mine, green with yellow knobs but the colors didn't work together like I wanted so the knobs are black/silver now. I think the yellow on its own is plenty of reference.

 

[Noodles]

I swapped the C6 220n cap for a 470n and now the rate is more usable for me. It's still most of the way CW, but now goes slow enough.

 

[Guilherme Collateral]

Now that's a switch, if you don't pay attention to the picture it looks like a guyatone pedal! Clean build, it's a great tremolo!

 

[wysiwyg]

When you swapped C6 to 470n, did it roughly half the rate vs. the 230n? Doing some quick research on the waveform generator, it seems that the rate and pin 10 cap value should be (inversely) proportional but not totally clear.

I just completed this build and it sounds fine but I'd like to be able to run the rate a bit slower. The lowest rate currently is around 220 beats per minute (which btw is about the same as an old BF fender) but I'd like to be able to get it a bit slower.