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LERA update: LERA meets NEO-vibe

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5/12/1999 2:55 PM

LERA update: LERA meets NEO-vibe

I've put just a bit more thought into LERA, along the lines of Mark's suggestion that it can be used for anything that you can use a variable resistor for.

One of my own pet projects is updating the NEO-vibe.

I've hacked in a VTL54C3/2 LED/dual LDR module for the opto module in LERA, and sure enough, it subs in just fine for the dual speed pot in the vibe. Also, I hooked in the pot of a crybaby shell with the +5/ground on the outside lugs and a SPDT switch to select either the 100uF cap or the wiper of the pot.

That way, I can pick whether the speed follows the foot pedal or the spin-up/spin-down of LERA, and *gets rid of that pesky dual pot*. I still need to mess with it a little, as I think it needs a minimum speed - at full slow, the vibe LFO stops.

5/14/1999 7:00 AM
R.G.	LERA successful on Small Stone Got email last night from a guy who hacked a LERA into a Sovtek reissue Small Stone. I would have thought that the speed pot in the SS was too big (1M) for adaptation, but he reports it works fine, although it did take some messing with resistors to get the proper up/down rates.

5/18/1999 12:55 PM
JD Sleep	Re: LERA update: LERA meets NEO-vibe R.G., Your LERA schematic lists a VT54C3 and your post lists a VTL54C3/2 (dual). I'm familiar with the VACTEC VACTROLS VTL5C3 and VTL5C3/2 (dual element), but I've never seen a VT54C3. Where can I find the VT54C3? Is the VTL5C3 a suitable sub for a VT54C3? Thanks for the help! JD

5/18/1999 12:59 PM
R.G.	Sorry - my typing and my brain don't always work together. I meant VTL5C3. Same line, single LDR version of the VTL5C3/2. Same things, all Vactec parts. Newark stocks them.

5/18/1999 1:31 PM
JD Sleep	Thanks R.G. I was hoping you'd say that! I'm stocked with VTL5C3s JD

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