Hammond Leslie G

[guitarguru1]

Anybody else waiting on a Rotary/Leslie PedalPCB? I reckon this Hammond Leslie G would be a good place to start since they're kinda hard to find.

 

[temol]

I doubt this will happen - it's DSP based Leslie emulation

 

[OldManAP]

What is out there in terms of analog rotary emulation? The H&K Rotosphere would be awesome, but probably a very involved project, what with the tubes and all. Wasn’t there an old Korg organ with analog Leslie simulation back in the day? Not sure how good it was.

Also, I just found this FV-1 based pedal, maybe something like this could be done?

 

[Robert]

What is out there in terms of analog rotary emulation?

 

[temol]

View attachment 62484

@Robert - Already traced?

 

[Robert]

Haha no not yet.

The Destination Rotation is though.

 

[temol]

I knew it...

So... name the pedal that waits or has waited the longest in the queue. How long?

 

[Fuzzonaut]

Dynacord, I'm tempted to say. But that won‘t fit into a 125B

Demo

Circuit and build info

 

[temol]

Yeah... only four TDA1022?
Luckily, Banzai has them in stock, at a bargain price of EUR 82 each.

 

[OldManAP]

Haha no not yet.

The Destination Rotation is though.

Oh yeah, duh, I forgot all about both of those. Would love to see that Destination Rotation. Is it reasonable, or does it have a gazillion piecey-parts?

 

[Robert]

It's not too bad. I actually have the Destination Rotation Single, not the one in the photo above.

 

[Guardians of the analog]

It's not too bad. I actually have the Destination Rotation Single, not the one in the photo above.

The single kinda sucks, I had it years ago, wish I could have tried the original but it only makes sense in stereo. Rotary is hard to make all analog and make it sound good.

 

[Robert]

I had the full one years ago but was foolishly expecting a Univibe and was not happy.

 

[Guardians of the analog]

I had the full one years ago but was foolishly expecting a Univibe and was not happy.

 

[temol]

It's not too bad. I actually have the Destination Rotation Single, not the one in the photo above.

I watched a demo on YouTube, it sounds ok. What's there as a drive? IC? JFETs?

 

[Robert]

I watched a demo on YouTube, it sounds ok. What's there as a drive? IC? JFETs?

It's basically a TS with the tone control fixed at noon.

 

[passtheducky]

You can def get in the ballpark with a stereo fv1 platform like the Binaura. The 80s version of the effect is just four modulated delay lines (top and bottom right and left). Just a matter of dialing in the lfos to be convincing.

Later on they started adding amp and cabinet emulations to rotary effects but that’s more relevant to B3 players I would guess. I usually find the drive sounds in those not really very fun.

 

[Feral Feline]

I read somewhere (can't find my notes on where) that a key to great Leslie emulation is that the BASS rotates at a slightly different speed than the TREBLE, especially when ramping up or down in speed.



Then of course, aside from bass/treble — how to emulate the sonic differences of a rotating drum with a hole cut out of it and a horn spinning...

 

[drgonzo1969]

I read somewhere (can't find my notes on where) that a key to great Leslie emulation is that the BASS rotates at a slightly different speed than the TREBLE, especially when ramping up or down in speed.



Then of course, aside from bass/treble — how to emulate the sonic differences of a rotating drum with a hole cut out of it and a horn spinning...

Super cool diagrams

 

[Feral Feline]

I only play bass because I can't get all four limbs to play a B3...