The 4Seq eurorack module combines aspects of both. It has just 4 stages but the direction can be controlled by a gate to go forwards or backwards, so you can end up with some very complex patterns. It also gives CV outputs that are the reverse of each other, if outX is counting 1,2,3,4 then outY counts 4,3,2,1. The gate outputs are /2, /4, /8 & /16 divisions of the incoming clock signal.
Here are some pics of the virgin PCB & panel:
Most of the components are through the hole but there are 32 resistors & 3 caps that are SMD. These passive SMDs can be 1206 or 0805
This is a great project if you need to get your SMD soldering skills up to scratch. All ICs are thru-hole.
so it is a very easy build.
Andrew's BOM & build notes are here:
http://www.sdiy.org/pinky/data/4SEQ%20BOM%20&%20build%20vers1.pdf
The Bindubba 1 was a 4 stage shift sequencer. (A cross between a ASR & CGS sequential switch)
The Bindubba 3 was a 16 stage vertical/horizontal, bi-directional matrix sequencer.
First solder those SMDs. The solder I used was a standard 0.7mm thickness.
Next, IC & the power headers:
The ICs are a CMOS counter (4029), a dual 4 channel multiplexer (4052), and two op-amps (TL072 & TL074)
Resistors, diodes & trannies. The transistors are all NPN BC547s. Diodes are standard 1N4148s
These are the three "d" resistors... they are 10K.
c = 100K
1 = 1K
The four 100k pots: (B-type)
Finally, install the LEDs.
You're done :-)
Links:
1. Muffs thread.
---------------------------------------------------------------------------------------------------
Click here to return to the NLC Build Index:
http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html
Hi Jon!
ReplyDeleteI can't make up my mind with regards to the blank retro of the PCB. Where's pointed out which resistor is to be soldered where?
I also can't understand where "d" resistors are to be placed 🧐
I'll check it out when I get a chance. I think I have a virgin board somewhere
DeleteMaybe now I understand!
ReplyDeleteIt's not printed with ink, but with copper!!
Hello Carlo,
ReplyDeleteSorry for the delay in replying, I've uploaded a new pic showing the d resistors. Hope this helps. J