madbeanpedals::forum

Projects => How Do I? Beginner's Paradise. => Topic started by: K3yPr0gg3r on August 30, 2016, 12:55:51 AM

Title: Re: Vactrol Type
Post by: K3yPr0gg3r on August 30, 2016, 12:55:51 AM
Hi,

I know it's discontinued, but I was wondering if anyone knew the specific type of Vactrol used in the Doombutter? I have a choice of 5, VTL5C1, VTL5C2, VTL5C3, VTL5C3/2, and VTL5C6. I know everyone says "roll your own", but I have tried in the past and FAILED miserably! I'd rather spend the $ on a commercial one.

Thank you
Title: Re: Vactrol Type
Post by: flanagan0718 on August 30, 2016, 01:22:43 AM
you could also use the Silonex ones (NSL32) too. I've used these before http://www.ebay.com/itm/OptoCoupler-Analog-Photocell-pure-resistive-High-dynamic-range-USA-genuine-/182226647602?hash=item2a6d8dfa32:g:RbIAAOSwZVlXnnwv (http://www.ebay.com/itm/OptoCoupler-Analog-Photocell-pure-resistive-High-dynamic-range-USA-genuine-/182226647602?hash=item2a6d8dfa32:g:RbIAAOSwZVlXnnwv) and they have worked pretty well.
Title: Re: Vactrol Type
Post by: Jules on August 30, 2016, 01:27:47 AM
This Circuit is not to fussy about vactrol type, I know you said you would rather not roll your own but in this case I think you would save yourself some $.
The Tayda Ldrs work fine in the Doombutter, if you must use a vactrol I have osed the vtl5c2 in this circuit and it worked fine.
Title: Re: Vactrol Type
Post by: K3yPr0gg3r on August 30, 2016, 01:37:44 AM
Thank you for both getting back to me. Very helpful info!!!
Title: Re: Vactrol Type
Post by: stringsthings on August 30, 2016, 04:21:37 AM
Here's an inexpensive vactrol.  As stated, the circuit is not fussy about vactrol type.

http://www.goldmine-elec-products.com/prodinfo.asp?number=G15396 (http://www.goldmine-elec-products.com/prodinfo.asp?number=G15396)

And I would encourage you to try a Tayda LDR ( 24 cents ! ) and a LED.  Just turn off the lights
when you test it.  You just bend the LED and the LDR at 90 degree angles so that the LED is pointing at the LDR.