Doepfer Re-Designs Update

The 'old' A-166
Dual Logic Module

No exciting Doepfer announcements for the upcoming MusikMesse (The world's largest trade fair for musical instruments 12-15 March, Frankfurt/Germany) yet, but Dieter Doepfer did update the members of the Doepfer A-100 Usergroup today on a few upcoming module-plans and re-designs.

" So far there is no release date for the A-166-2 available the zero crossing comparator was also mentioned as part of the module.

The inquiries for such a module seem to be very poor.

But I will finish this module anyhow (just for myself) because I need such functions now and then (especially the flipflop)..."

The original
A-114 RingMod

Find more about the A-166-2 features in my blogpost from last November HERE

"...In addition we think about the redesign of some older modules.

Especially we think of new arrangements of some dual modules (Dual Ring Modulator A-114, Dual S&H A-148, Dual Trigger Delay A-162, Dual Slew Limiter A-170, Dual Trigger Modifier A-185 ...) as in many cases e.g. only a single ring modulator or a single Sample & Hold.

This will lead to some new combo modules (e.g. combination of S&H and VC slew limiter in one module) with a more value for money as you do not have to pay for unused second sub-units."

Source: Dieter Doepfer

 - Find a selection of Doepfer products at Musikmesse in Frankfurt from 12th - 15th March, 2014 at the booth of their European distributor Alex 4 in hall 5.1, booth nr C54. -

A-162 Dual Trigger Delay

The A-162 Dual Trigger Delay contains two separate delay circuits for trigger signals.
This module makes it possible to delay the onset of trigger pulses.
This is very useful in case you want the modulation to kick in a little after the initial start of a sound (modulation delay) or to create interesting echo-like effects.

Both trigger delays have two controls that can alter the onset time and duration of triggers, standard from 0 up to about ten seconds.
The time range of delay and/or length can be modified very easily by changing the value of a capacitor, e.g. 200 us...1 s or 20 us ... 100 ms or 2us ... 10ms.
That way the module can be used also for audio applications.

If you want to modify the module yourself please read this document: Timing capacitors of A-100 modules.

Locating the A-162 timing Capacitors C2 and C5

Timing capacitors:
C2 (delay time)
C5 (length)
Standard value: 10uF
Polarity: minus = left

Also check out THIS post from navs.modular.blog on how to modify a Doepfer A-162 Dual Trigger Delay for perfect filter pings.

The mods described will most likely void any warranty and, if not done carefully, can damage the circuit board, IC chips, and faceplates.