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Re: Manual Trigger/Thru DIY project

2003-05-09 by Joe Buechler

Very nice. This is very similar to a DIY module that I've been 
thinking about, and posted about several months ago. The one I was 
envisioning had two additional features for each switch:

1) An attenuator, operating on either the input or the normalled 
voltage, similar to the A155 external inputs jacks and the bottom row 
of A155 knobs.

2) A toggle switch, so that each "switch channel" could be used in 
either momentary or toggle mode - or even both, as the toggle switch 
would  reverse the NO/NC operation of the momentary pushbutton (2-way 
switch).

This would obviously be a much wider module, with the "switch 
channels" arranged as columns. I think it would be a bit more useful, 
but of course yours has the BIG advantage of having actually been 
built, rather than being a vapor-module.

Good work

Joe

--- In Doepfer_a100@yahoogroups.com, Quantum Productions 
<quantumproductions@p...> wrote:
> Hi all
> 
> Just wanted to let you know that I just finished one of my do it 
yourself
> modules for the A-100
> this one is a 'Manual Trigger / Thru' module
> 
> This module has 6 sections, of which 4 are a manual trigger/thru 
(top
> section) and 2 are a manual trigger only (bottom section)
> 
> ** Manual Trigger/thru
> has a INput, a manual momentary pushbutton and an OUTput
> if nothing is connected to the input, the output gives a +5V trigger 
each
> time the manual button is pushed (and as long as it is pushed, so it 
can
> operate as a gate as well)
> if there is something connected to the input, the output gets the 
throughput
> of this each time (and as long as) the manual button is pushed
> 
> ** Manual Trigger
> this only has the push button and the OUTput, as soon as you press 
the
> button the output gives a +5V trigger
> 
> usually you connect another trigger/gate/clock source to the INput 
of the
> Manual trigger/thru, to enable this to be throughput with the button
> 
> what do I do with this module?
> well, it is not a revolutionary design or high risk DIY project, but 
for me
> it is quite an invaluable tool
> because I can produce (max) 6 triggers manually, with which I can 
start
> Envelopes, start/stop or clock the sequencer, switch a VC-Switch or
> Sequential Clock, trigger a next sample/hold, reset an LFO, switch 
from one
> sequencer to another (by means of a VCS or Seq switch) etc etc
> this means that I can start, change or stop all kind of sound 
effects and
> patterns with only a couple of pushes on buttons, and I don't need 
any
> keyboard (which I would like to keep for the usual playing)
> 
> at this moment it can only be mounted in a rack with the +5V power 
source
> (such as the basic system with midi) I do take the +5V from the bus 
directly
> but I will expand the module with a simple circuit to create a +5V 
source
> from the standard +12 V power
> 
> at the yahoo A100 site, I have put a couple of pictures of this 
module, in
> the Photo Albums section in the album called Manual Trig/Thru
> you can identify the Manual Trig/Thru sections (IN-red 
pushbutton-OUT) and
> the Manual Trig sections (black pushbutton-OUT) easily
> 
> if you want to know more about this project, please don't hesitate 
to ask
> more projects are in preparation
> 
> Eric

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