Vomit Comet, Leslie cab in a box

[diablochris6]

After a heap of prototype boards and redesigns, I finally finished my Leslie-ish circuit! You can read a little more about how it works here. Basically, the audio splits at 796 Hz. The low end goes through tremolo and vibe circuits (anything under 80Hz is unaffected), and the high end has simulated Doppler effect and cabinet resonance with a PT2399 chorus and then a tremolo and vibe circuit. The two pathways can run on one LFO to be synched or can run on independent LFOs. Each LFO can ramp between two speeds, and the ramp rate is controlled by trimpots (they are accessed by the two holes between the speed knobs). It has stereo outputs that can run summed mono signals, one output for high frequencies and the other for the lows, or 100% output of one signal and 50% of the other. There is a slight tick to the LFO, but I bet it would be eradicated with a 470u cap in the power filtering stage. At the levels I play at, it isn't really noticeable, but I'll really take a look at it later. For now, I'm gonna enjoy this beast!

For extra fun, I used three 1776 relay bypasses, one for the bypass and two for the LFO ramp switching. This allows me to use arcade buttons for extra cool factor. For the enclosure, I designed the graphic in Inkscape, printed it out on a photocopier, and transferred it to a powdercoated Hammond enclosure by rubbing acetone on it. The toner just slips right off the paper and onto the box!

[jubal81]

That is seriously amazing. Well done, bud. Any chance we're gonna get a shot as these PCBs?

[Jules]

Fantastic work, looks great!
I too would love the opportunity to have a crack at building one myself.

[somnif]

Is the mild scratchy-ness from something in your effect chain, or is the 2399 being a bit over-driven? (and as a corollary, does it use the pin 7 green LED trick?). Or is it just an inherent part of the effect.

I'm just curious. It sounds quite nifty as is.

[Spacebass]

Impressive! I need one of these. Im in too for the pcbs, sure you send one of these to Scofield and you become next boutiquer of the famous! it sounds as good. Congratulations

[mjg]

Very cool.   Obvious that you've put a lot of work into this.

[Andlord]

This sounds so unique. Good job!

[diablochris6]

That is seriously amazing. Well done, bud. Any chance we're gonna get a shot as these PCBs?

Thanks. Of course I'll get some PCBs made. I'll probably do so once I or a beta tester figure out the values to get rid of the tick.

Is the mild scratchy-ness from something in your effect chain, or is the 2399 being a bit over-driven? (and as a corollary, does it use the pin 7 green LED trick?). Or is it just an inherent part of the effect.

I think it could either be the overdrive I'm playing through, iPhone quality video, or the noisy tubes in my amp. I'm thinking it's the overdrive. I have played this pedal with no other effects and don't hear any PT2399 clipping.

Im in too for the pcbs, sure you send one of these to Scofield and you become next boutiquer of the famous!

Scofield is a big guitar hero of mine. That would be cool...

[Andlord]

Thanks. Of course I'll get some PCBs made. I'll probably do so once I or a beta tester figure out the values to get rid of the tick.

Awesome, looking forward to this!

[BrianS]

Awesome as always.  I'm in, as usual, when you do a group buy on this. 

[dan.schumaker]

Sounds awesome!  Excited to try this bad boy out!

[midwayfair]

Was that Gymnopodie in the middle of the video?

[somnif]

Is the mild scratchy-ness from something in your effect chain, or is the 2399 being a bit over-driven? (and as a corollary, does it use the pin 7 green LED trick?). Or is it just an inherent part of the effect.

I think it could either be the overdrive I'm playing through, iPhone quality video, or the noisy tubes in my amp. I'm thinking it's the overdrive. I have played this pedal with no other effects and don't hear any PT2399 clipping.

Excellent, I was hoping that was the case. What a lovely effect.

[Philthy]

Most excellent
Looking forward to the pcb

[peAk]

Sign me up, I love this one