Yahoo Groups archive

Doepfer

Index last updated: 2026-04-29 00:15 UTC

Thread

WTB: Dark Time

WTB: Dark Time

2011-12-05 by Matt Fretton

Thought I'd check here to see if anyone has a Dark Time to sell before
I go to Thomann. I'm in London UK. Matt

A-117 modification

2012-02-01 by istari

hi

i just tested around the A-117 oscillator part. i played with the 
trim-pots and now
thinking about adding some external pots instead of them to pitch 
adjust them from frontside.

i simply added also some lfo voltage to the middle pin and found some 
little response to that.

did anymody did that before? i also thinking if something else then 
the 250k pot will sweep
the oscillators more deeper.

wonder if the CD40106BE is doing the osc sounds or if it belongs to 
the digital noise. as far
as i think both unites are kind of seperate on one pcb.

the oscillators do some nice drony sounds beside of their main aim 
for cymal percussions.

felix

Re: A-117 modification

2012-02-04 by Tim

> wonder if the CD40106BE is doing the osc sounds or if it belongs to 
> the digital noise. as far
> as i think both unites are kind of seperate on one pcb.

The 40106 next to the two trimpots contains all the oscillators: the trimpots are used for the oscillators for the '2 oscillators' output; the other 4 oscs are fixed frequency. The other 40106 is used for the digital noise - one section for the oscillator, the others for inverting or simply buffers.

Tim

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.