Doepfer

Hello there,

I would like to make a small switch on my A140 adsr modules. 
Looking at some Moog adsr modules I like the idea having a momentary switch to make a fast and easy way to tune the timing with a manual gate. 
Anyone has experience with this mod?
I guess I'll have to find a 5V(?) voltage from the pcb or maybe 12V with a resistor?

Cheers from Holland

Jacco Ville

I would suggest getting a manual pushbutton gate module. Doepfer makes the A-164-1 manual gate module and we (www.synthwerks.com) make a couple of modules that will do this quite easily (the MG-1, FST-1T, or any of our FSR modules) plus give you some other useful functions. That way uoi can use these functions with more than the A-140. Almost all of our modules connect to the internal Doepfer Gate bus (with jumpers on the PCB) so no cable is even needed.

-James
James Husted, Designer, Synthwerks LLC • www.synthwerks.com • james@synthwerks.com • info@synthwerks.com

> On May 26, 2016, at 6:42 AM, jaccoville@yahoo.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> Hello there,
> 
> I would like to make a small switch on my A140 adsr modules. 
> Looking at some Moog adsr modules I like the idea having a momentary switch to make a fast and easy way to tune the timing with a manual gate. 
> Anyone has experience with this mod?
> I guess I'll have to find a 5V(?) voltage from the pcb or maybe 12V with a resistor?
> 
> Cheers from Holland
> 
> Jacco Ville

Is it possible to use the +12V side of the boardsupply to use as a gate by means of a momentary switch?

Am 27.05.2016 um 10:26 schrieb jaccoville@yahoo.com [Doepfer_a100]:
> Is it possible to use the +12V side of the boardsupply to use as a gate by means of a momentary switch?
I'd put two resistors 100k/47k as potentiometer and a 1k resistor in 
series to the gate. Like this:

12V
|
|
<
>10k
<
|
|
+------switch------^v^------>Gate
|
|
<
> 47k
<
|
|
Gnd


(I hope the ASCII graphik is readable)

Hello Nick,

Yes, I've contacted Florian already, this is clear. 
I ordered the miniswitches :-)

Cheers 

Jacco .

> Hello there,
> 
> I would like to make a small switch on my A140 adsr modules. 
> Looking at some Moog adsr modules I like the idea having a momentary switch to make a fast and easy way to tune the 
> timing with a manual gate. 
> Anyone has experience with this mod?
> I guess I'll have to find a 5V(?) voltage from the pcb or maybe 12V with a resistor?
> 
> Cheers from Holland
> 
> Jacco Ville

+12V via a protection resistor (e.g. 1k) is fine. The A-140 does not require exactly +5V. Any voltage beyond about +3V will work.

Best wishes
Dieter Doepfer