Fender Tremolo Optocoupter

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iingvarr
Posts: 3
Joined: Thu Feb 18, 2010 9:59 am
Location: Russia

Fender Tremolo Optocoupter

Post by iingvarr »

First of all, I would like to apologize for my English! It's very bad! But I hope you will understand me and help solve my problem.
And the problem is actually in the next - whether the standard Fender tremolo optocoupter replaced by VTL5C1 in the scheme of Fender '65 Deluxe Reverb?
Thanks in advance for your help
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Structo
Posts: 15446
Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon

Re: Fender Tremolo Optocoupter

Post by Structo »

Hi,
What country do you live in?

It helps us if you put that into your profile.

The part you listed is a Vactrol, a brand name opto isolator.


Not sure if those would work in the Fender amp.
Those are usually used more for switching I think.

Hoffman usually carries the Fender part but I see he is currently out.

It is the Tremolo Roach, as they call it.
Like this:

[img:510:204]https://www.darrenriley.com/shop/images ... s/4694.jpg[/img]

http://www.mojotone.com/amp-parts/Switc ... ls-Vibrato

You can also make your own.
http://taweber.powweb.com/store/opto_kit.htm

You can use a LED or a incandescent light bulb.
http://taweber.powweb.com/store/opto_ind.htm

For the reissue '65 Deluxe Reverb amplifier, the part is OP1 #037836
Tom

Don't let that smoke out!
iingvarr
Posts: 3
Joined: Thu Feb 18, 2010 9:59 am
Location: Russia

Re: Fender Tremolo Optocoupter

Post by iingvarr »

Thaks! I corrected my profile)
In Russia, a rather problematic to find the original optocoupler for Fender tremolo, and ordering the components from abroad, I forgot to order it.
I just have a couple VTL5С1 and , I think, I read somewhere on the internet, that VTL5С1 used instead of the original optocouplers. But I can not find where I got such information.
Here I found that optocoupler made ​​FROM VTL5С1, take it apart and replacing the LED on the bulb - http://www.clarkhuckaby.com/fendervib.html
And here discusses the use of VTL5C3 in tremolo, but I did not understand how it is used!!!))) - http://music-electronics-forum.com/t8017/
iingvarr
Posts: 3
Joined: Thu Feb 18, 2010 9:59 am
Location: Russia

Re: Fender Tremolo Optocoupter

Post by iingvarr »

That's something like - http://www.thegearpage.net/board/archiv ... 81219.html
And if I understood correctly "...With the LED installed (attach the positive LED lead, the long one, to the 10M resistor)...", then we obtain the following scheme http://www.onlinedisk.ru/view/657697
That's it? :D
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Structo
Posts: 15446
Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon

Re: Fender Tremolo Optocoupter

Post by Structo »

That may work.
Basically it's just a LED and a photocell.
Tom

Don't let that smoke out!
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