first schem attempt to help fault find envelope follower to 4010 oscilator

[oram]

Hiya...so collage and gimp be my game as i can't get diylayout to install on ubunto yet.

Anyhow, I've had this circuit sat on my bench since I first joined. The problem I'm having is turning the oscillator all the way off in circuit, it bleeds through. I understand my rudimentary attempts to use that 1m pot are completely wrong, but I thought I'd just show where I got to. I thought I could copy the back end of the buff an blend, that didn't work. I'm considering the ggg mixer. But I wanted to see if there was a simpler solution, and I'm sure this will involve me learning what I have been trying to look for is actually called. I'm not even sure what I'm trying to make is called, I built it from separate circuits out of Nicolas Collins' Handmade Electronic Music.

Thanks for your help

Darren

<a href="http://s84.photobucket.com/user/notmalejohnoram/media/envelopeoscilator_zps19ef0b33.jpg.html" target="_blank"><img src="http://i84.photobucket.com/albums/k17/notmalejohnoram/envelopeoscilator_zps19ef0b33.jpg" border="0" alt=" photo envelopeoscilator_zps19ef0b33.jpg"/></a>


And it appears i don't know how to post an image here yet. Apologies. Hopefuly i'll figure it out before being told.

[PRR]

> how to post an image

PhotoBucket makes it exceptionally difficult, and craps-up my browser.

Imgur.com is less obnoxious.

[PRR]

> turning the oscillator all the way off in circuit, it bleeds through.

The 1Meg pot goes to ground; it should go to ZERO output. Otherwise means a wiring fault.

Why do you have the envelope going to the output??

[oram]

"> turning the oscillator all the way off in circuit, it bleeds through.

The 1Meg pot goes to ground; it should go to ZERO output. Otherwise means a wiring fault. "

I tried disconnecting the 3rd pot ear to zero. I still get the bleed through. The reason i have the signal coming from the envelope is that i wanted to be able to hear the original signal and be able to blend the oscillator into that signal path. Possibly I have gone about this wrong? I'd like the oscillator signal to be able to be blended into my guitar signal.

I will use imgur from now on. Thanks for posting up the image.

cheers

[PRR]

> tried disconnecting the 3rd pot ear to zero. I still get the bleed through.

It has to BE connected to ground. Your disconnection experiment proves it. Figure out how to make it BE connected to ground, the bleed will be zero.

You can't hear the envelope (except as a thump, probably hard to hear together with guitar or oscillator).

If you want to hear the original signal, take it *before* the envelope generator and MIX it (mix resistors) to the output. But at this point that's a frill which can wait. Get the envelope follower sweeping the oscillator and get your volume pot working smoothly.

[oram]

>It has to BE connected to ground. Your disconnection experiment proves it. Figure out how to make it BE connected to ground, the bleed will be zero.

Flippin eck...connected that ear to the ground on the jack socket and it worked straight away is intended. Great. Goes to show I still shouldn't assume anything. I really thought that connecting that pot ear to the v- rail i was correct.

I'll take that signal earlier as you've suggested. But that will be tomorrow now.

Thanks for your help.