external moog filter

MIDIbox FM
1

I just start to create a midibox FM. I listened the MIDIbox FM Demo Samples, specially this one:

This demo demonstrates the possibilities of the AOUT module - an external Moog filter (Schematic from Rick Jansen) has been added and is controlled from one of the eight CV outputs. Since I only own one filter, the different sounds have been recorded one after another via overdub. The song stops at 1:29 (no download error)

Are you able to realize the same sounds with a common FM synth? :wink:

I search the schematic of the extenal Moog filter (schematic from Rick Jansen). Can you help me ?

Thanks.

2

Hi,

I’m not shure if it’s filter design used by TK:

http://dropmix.xs4all.nl/rick/Emusic/Moog/

3

google “Rick Jansen Moog”, click first result. :sorcerer:

edit: damn it! too slow…

4

Hmmm…

Whaddya’ know? I’m building that right now :ninja:

5

As a Matter of fact… Has anyone built this? I’m building it on perfboard.

Rick’s Moog Filter

I’m at the top of the transistor ladder and I can’t figger out how to connect my BC337s to the first 2 transistors on this CA3046 without clustering everything on pin 3 where the emitters connect…

I know, not midibox, But a few of a you guys have built this right?

Thanks :flowers:

Got it. I can use the transistors in any order or configuration I please. It’s just like having 5 separate transistors… only on an IC!!