# \$2 Ring Modulator

#### dislocations

Feb 21, 2012
25
A friend and I are putting these in all our new circuit bent instruments!!!

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,510
Hey, sounds cool. Maybe you can post the circuit diagram here.

Feb 21, 2012
25
Will do!!!

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,510
That would be cool because there's someone in another thread who is interested in making one!

#### dislocations

Feb 21, 2012
25
As there is a fool proof guide in the description of the video I decided not to do a schematic.....besides, my drawings are confusing!!!

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,510
As there is a fool proof guide in the description of the video I decided not to do a schematic.....besides, my drawings are confusing!!!

Foolproof? It may not be the worst possible way to define a circuit, but it has to be in the running.

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,510
OK, can't draw it now, but the configuration is 1/6 40106 configured as a variable frequency oscillator. R is a 1M pot, and C is a 0.22uF capacitor.

The output of this is connected to 1/4 4066 do that it switches the input signal on and off.

Essentially it amplitude "modulates" the input with a 50% duty cycle square wave.

I wouldn't be surprised itf it also removes some of the negative peaks of the input signal due to the effects of the input protection too.

I'm surprised it doesn't sound like complete crap!

edit: oh there are a heap of inputs left floating which is a bad thing.

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