[sdiy] Modular synth input/output protection.

[Rykhaard D.A.M.I.A.N.]

All of the muchlee appreciated info., does put a little bit of fuzz
into things for me. :-/
I'm currently hooking up the 8 x step, Gate functions for my
sequencer.  Following the example Ken Stone used on one of his modules
- Tranny through LED to a 1K to output, then 2K (he'd used 2K2) to
Ground.

This will drop my +15V input to the tranny, to +10V, for the Gates.

Running my CMOS on +15V/Ground, I need to be above +15/2 (or +7.5V)
for things to happen - hence, keeping my Gates at +10V.

But (the fuzz) - I stay with +10 / +/-10V on everything else in the
machine, or drop down to +/-5V for controllers and AC?  (My 2 x LFOs
are currently unedited at +/- 2.5 Sine, Triangle and +/- 8V or so on
Square.  I left them this way, as I was in a rush to get my 1st 2
modules up and running, back in July. ;)  LOL)

My ADSR outputs though, are about +10V.  (I'm thinking that I should
stick with the +10V / +/-10V for everything.  Still have to fix most
of the outputs from T. Gamble's VCO4D. Built it EXACTLY has he had it
in the schematic.)

Heck.  Most is at 10V ..... I'm going to stick with that. :D

(Building tip!! :O :O :O  PLAN, PLAN, PLAN - E-V-E-R-Y-T-H-I-N-G when
designing a circuit!  Wasted 90 minutes this afternoon, in laying out
the daughter board for my sequencer. :O :O  Thankfully realized the
error before I was too far into it, and corrected all of the resistor
hookups to the transistor buffers, for the 8 x Gate outputs. :O
This dang 'building on a whim', isn't always reliable.  PLAN, PLAN,
PLAN!  Haha. :D )

--
Take care,
Warmth and Peace,
Ryk

http://deathlehem.bravehost.com/damian.html - D.A.M.I.A.N.;s webpage -
Jan. 2106 update