CGS62 - Slope Detector

funkyfarm · Posted: Sat Aug 23, 2008 6:03 pm Post subject: CGS62 - Slope Detector

CGS62 - Slope Detector

http://www.cgs.synth.net/modules/cgs62_sd.html

What a cool module, but I wonder if packing two units is optional ; running in parallel Quadrature /threePhase LFOs, or two AD envelope generators...
Such a small design !

Posted Image, might have been reduced in size. Click Image to view fullscreen.

Posted Image, might have been reduced in size. Click Image to view fullscreen.

Oh, yes, maybe i'd rather learn how to use my gate comp Smile

funkyfarm · Posted: Sat Aug 23, 2008 6:10 pm Post subject:

Yup !

The Alison Project has two Cool

http://electro-music.com/forum/viewtopic.php?highlight=slope&t=26202

The Alison Project · Posted: Mon Aug 25, 2008 8:51 pm Post subject:

I love the Slope Detector's, I want two more.

slope.gif

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neandrewthal · Joined: May 11, 2007 Posts: 672 Location: Canada

What do you like to feed in? What do you like to trigger with it?

widdly · Posted: Tue Aug 26, 2008 2:54 am Post subject:

Steady!

I've been meaning to build one of these. I imagine it would be handy for combining envelopes into something more complicated.

The Alison Project · Posted: Tue Aug 26, 2008 8:28 pm Post subject:

I use it to trigger all sorts of things (eg's, clock's, vca's, gated lfo's etc)... I definitely don't have a standard usage for it.....

The signal I activate it with changes alot but one common way I use it is if I have a sequencer clock running from an lfo I will feed another wave from the same lfo it the cv standards....

funkyfarm · Posted: Tue Aug 26, 2008 11:44 pm Post subject:

do you use both of them at the same time ? Smile

The Alison Project · Posted: Wed Aug 27, 2008 10:45 am Post subject:

all the time, different sensitivity makes them switch at slightly different times

funkyfarm · Posted: Fri Aug 29, 2008 5:00 pm Post subject:

Okay !
I'm convinced.
i'll get three for my 3-Phase LFO. Smile

funkyfarm · Posted: Fri Aug 29, 2008 5:31 pm Post subject:

synthmonger · Posted: Tue Sep 02, 2008 6:23 pm Post subject:

You misspelled Slope in your pdf.

Cat-A-Tonic · Joined: Mar 24, 2008 Posts: 42 Location: Yokohama, Japan

Sleazy Pope Detector

neandrewthal · Joined: May 11, 2007 Posts: 672 Location: Canada

worldbank · Joined: Nov 29, 2010 Posts: 2 Location: finland

hey

i wonder if someone could help me with this..

i built it. all the parts are in right places. i put it on and connect a cable from lfo out or what ever to cv in, nothing happens, no lights.. then i put a cable from any of the outputs to adsr trig input, nothing. BUT, if i just touch the adsr trig input connector with the tip of the cable coming from the slope detector output(any) it seems to work.. according to the leds atleast.. what is wrong ? im 100% sure everything is wired exactly as in the wiring diagram.. ive checked it many many times..

thanks..

andrewF · Posted: Mon Jun 20, 2011 4:49 pm Post subject:

what transistors did you use?
sounds like a problem with them....or grounding (lack of)?

Good way to start troubleshooting is to check the emitters of each transistor (the ones with the arrow mark) are all getting +15V (or + 12V), also check the TL072 has +/-V on pins 4 & 8.