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Adding LERA (Leslie) to Smoothie

Started by trickpony, December 20, 2012, 06:05:07 AM

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trickpony

So a friend wants a leslie sounding phaser so I though I would try this.
I am using the LERA from geofex
http://www.geofex.com/article_folders/lera/lera.htm

Has anyone already tried this?

For the LDR could I just use this: (?)
VT43N3
LDR, 500KOHM, 400mW, VT400 SERIES
Power Rating: 400mW
Dark Resistance: 500kohm
Series: VT400
Operating Temperature Range: -40°C to +75°C
Voltage Rating: 400V
Resistor Case Style: Radial Leaded
No. of Pins: 2
RoHS Compliant: No

In general I should be looking for a LDR that goes between 0-500K like the original speed pot for smoothie right?

Thanks,
Ben

gitaar0

I have installed the lera in an easyvibe. It works well but in case of the easyvibe I had to tweak quite a bit to get it work right.
Considering the way the speed pot is set up in the smoothie, I think it will be easier.
You wire up the lera in parallel to the original speedpot of the smoothie, so you still can use it.
The Optocoupler or Led/LDR adds parallel resistance and thus changes the speed. The actual "best" solution will depend on a combination of factors and what you want in speed change. It will need tweaking....
I would suggest getting an LDR and LED and make your own optocoupler.
Read the geofex notes, as most you will need to know is there.

Good luck.