[sdiy] Hey all: first post

[Ray Wilson]

Hi Jesse

On the keyboard controller the points for CV out, triggers, and gate are all 
wired to the hot jack pin and yes the ground of the jacks all go to ground. 
Its actually a very good controller. I have one of those and one of the 
matrix encoded keyboards built and I like them both. The one you are 
considering is more "classic".

Cheers and welcome to synth-diy posting.

Ray



----- Original Message ----- 
From: "Jesse Yoder" <jojomanee at gmail.com>
To: "Synth-DIY List" <synth-diy at dropmix.xs4all.nl>
Sent: Friday, May 27, 2005 12:18 AM
Subject: [sdiy] Hey all: first post


> Hey all.  This is my first post on this thread.  I subscribed the
> other day and have been enjoying just lurking and reading the
> messages.  I have been doing electronics as a hobby for at leat nearly
> 10yrs now, and while I'm not an EE, I have done my share of building
> projects.  I am currently putting together plans for a modular
> analogue synth using other peoples schematics and I have what may be
> considered a stupid question.
>
> In many schematics I have looked at, the inputs and outputs of each
> module are shown as simply one wire in/out.  I had been unsure, but
> had decided that it must be implied that the other node of the jack
> would go to the common gorund.
>
> However, I have been doing some digging and have noticed people using
> banana plugs rather than phone jacks to connect some modules; also, I
> have noticed designs which seem (at least to me, with my limited
> electronics expertise) to not make sense to complete the circuit with
> a jack connected to common ground.  So my "stupid" question is this:
> in the following schematics (and in modular analogue synths in
> general) are phone plugs using only one wire, or am I supposed to
> connect the jacks to common ground?
>
> Some schematics I've been looking at:
> http://www.musicfromouterspace.com/analogsynth/keybrdcontroller.html
> (no jacks, and no explanation of whether the jacks should be
> "grounded")
> http://musicfromouterspace.com/analogsynth/norgate_adsr_001.html
> (another schematic from the same site, with jacks inserted and
> grounded)
> http://www.abacom.com/~ivanohe/synth/ivanohe1e.html (A guy using
> banana plugs [those have only one wire, am I correct?])
> http://www.sowa.synth.net/modular/vco4m.gif (a schematic with jacks -
> implied that they should be "grounded")
> http://hem.bredband.net/bersyn/VCO/VCO%20Buchla%20core.gif (no jacks at 
> all ...)
>
> You get the idea.
>
> Hope someone can help.
> thanks in advance
> ~~Ponyboy
>