Tremelo circuit

[amelecsol2000]

Does anyone know of a schematic for a tremelo circuit?
I have experimented with a 555 and a 741, " still experimenting "
anyway I have been looking for a schematic to get some ideas.
I found a good fuzz circuit but no tremelo.

 

[amelecsol2000]

Tremelo Circuit

Made some progress, got the tremelo effect I need , but the transistor is loading the output, switched it to the input and it also loads the amp.
Next step: I am going to try a voltage follower for the output of the tremelo circuit.
Still looking for a schematic , advise or ideas.

 

[-_nando-_]

http://members.shaw.ca/roma/vibrato.html

There's vibrato and tremolo, appears to be okay, but I didn't make it yet !

I'm very interested too, and I'll make my tremolo soon ! 🙂

 

[amelecsol2000]

Tremelo

Nando.
Thank you , that link was just what I needed. Not breadboarded yet but the whole project is underway now.
A few days of routing the PCB on paper and I should be good to go.

 

[-_nando-_]

Hi again !

FORGET that link, I've modified Rod Elliot's tremolo and is sounding just GREAT, for sure is the best tremolo that I ever seen !


I'll be posting the schematic soon, I've just finishied right NOW my tremolo circuit, it's on veroboard yet, and I made lots of tests, the tremolo is just... Musical !


😀

Pictures !

http://files.upl.silentwhisper.net/upload8/Photo0110.jpg
http://files.upl.silentwhisper.net/upload8/Photo0109.jpg
http://files.upl.silentwhisper.net/upload8/Photo0108.jpg

 

[amelecsol2000]

Tremelo

Sounds interesting!! I will look for youe schematic.

 

[-_nando-_]

Amelecsol, sorry, I'm so busy, my life is a mess since some weeks ago, I'll post it to you tomorrow !

 

[amelecsol2000]

No problem , I know how things go.
I have been busy with a few other things myself. Back to the amp tommarow though.

 

[-_nando-_]

I'm so sorry, I was very very busy, you can't imagine how !


here it is, sorry again for the time that I made you wait:

http://files.upl.silentwhisper.net/upload8/tremolofernando3.jpg


Enjoy !


🙂

 

[amelecsol2000]

Got it ,
I like this one also, I am partial to Op/Amps

Thank you

 

[-_nando-_]

Tell me when you finish it ! 😀

I'm sure that you'll like it very much !

😀

 

[amelecsol2000]

Hey there,
I like it , printed it, I should be able to power it up this weekend.

Thank you

 

[-_nando-_]

Ah, just a little note,

The VR of the Led (that shines on LDR) should be in the pedal, then you can control the tremolo intensity by pressing the pedal. Is nice to control it's intensity with the foot 🙂 Very good to express your feelings 😀

 

[amelecsol2000]

Tremolo / Nando

Sorry I did not get back with you. A lot of things going on here.
I did finish the circuit and it does work great!!
Thank you.

 

[-_nando-_]

I'm happy to have your feedback !

You're aways welcome ! 😉

 

[mattisa_lamma]

None of those links work except for http://members.shaw.ca/roma/vibrato.html

 

[Wavebourn]

Use a variable voltage splitter made of a resistor and a FET, applying modulating voltage to the gate. No DC must present between source and drain to avoid audible motorboating.