madbeanpedals::forum

Projects => General Questions => Topic started by: arthurc on July 16, 2014, 10:21:44 PM

Title: Juansolos Leslish
Post by: arthurc on July 16, 2014, 10:21:44 PM
I've been looking for a schematic for the Leslish since I have a Trivibe board waiting for a project and I want to build something similiar. That was just a badass sound coming from the effect he built.

Anyone know?
Title: Re: Juansolos Leslish
Post by: selfdestroyer on July 17, 2014, 06:35:51 AM
This one?

(http://juansolo.co.uk/stompage/schematics/Misc/LeslieFilterSchem.jpg)

Cody
Title: Re: Juansolos Leslish
Post by: juansolo on July 17, 2014, 08:58:50 AM
That's a blast from the past. Yeah that's the schem. It doesn't need the trimmers at the end as it's unity when dimed anyhow.

Here's the vero layout:

(http://juansolo.co.uk/stompage/schematics/Misc/LeslieFilterRamp.jpg)

A bit of a dogs breakfast inside, but it works!

(http://juansolo.co.uk/stompage/images/leslie-i.jpg)
Title: Re: Juansolos Leslish
Post by: marauder on July 17, 2014, 09:14:06 AM
That vero is a little confusing as its got 2 circuits on it.

There's the splitter/mixing circuit from my schematic, and the LED/LDR ramping circuit on the top 5 rows.
Transistor is a 2n3904.  The LDRs replace the 820k resistors on the trivibe boards,  the speed pot is a dual gang 500kb, wired to each trivibe board.
Title: Re: Juansolos Leslish
Post by: juansolo on July 17, 2014, 09:36:30 AM
We messed with the relative speeds/depths of the two Tri-Vibes IIRC to get them more leslish (Hi freq 'spinning' faster than low). Cleggy will remember how. I can't remember yesterday...*







*...I just remember doing what they told me...

...told me...

...told me...
Title: Re: Juansolos Leslish
Post by: TGP39 on July 18, 2014, 03:45:46 AM
Quote from: juansolo on July 17, 2014, 09:36:30 AM
We messed with the relative speeds/depths of the two Tri-Vibes IIRC to get them more leslish (Hi freq 'spinning' faster than low). Cleggy will remember how. I can't remember yesterday...*

My favorite album of all time...... :)





*...I just remember doing what they told me...

...told me...

...told me...
Title: Re: Juansolos Leslish
Post by: marauder on July 18, 2014, 09:52:18 AM
I think the low frequency trivibe has a 18k resistor on the speed pot, 12k on the high frequency.