As a huge Korg fan I got to put together an Ensemble piece using 1978 era Korg Synths. The hero is the mighty PS3200 polyphonic synth playing homage to its big brother (and, as of 2024, soon to be re-released by Korg, the PS3300) by using the direct out of the 3200 into a MAM RS3 Resonator which recreates the famous PS3300 & 3100 modulated resonator circuit. The 3200 plays pads, base and noises.  Lead lines and extra pads via an MS20 into a VC10 Vocoder combo give a haunting breathy sound.  The SQ10 Sequencer drives the MS50 and MS20 synths for a rhythmic sequence and the MS ..read more

This is my index for all coffee related stuff. I'm mainly interested on Coffee Lever Espresso machines. These I think  are most closely related to analog. Coffee + Expresso coffee machines 101 - the components + How do coffee expresso machines work ? + Vintage Coffee Machine - Rancilio + Everything You Need To Know To Steam Great Milk + Expresso machines 101 - boilers + Coffee Group-heads + coffee machines - pumps + Classic coffee machines + Coffee machine manufacturers + Coffee Profiling 101 - Temp, Pressure & flow. + La Pavoni ..read more

If you want good tasting espresso for whatever coffee drink you're making dialing in your coffee is absolutely crucial . The aim is to get a good brew recipe. This post's focus is mainly on the time factor. You need to do this whenever you have a new bag of beans.  (even if you're using the same coffee from the same roaster as last time). Getting a good coffee is a bit like getting a good golf swing.  Repeat, repeat, repeat. Try to reduce variables. get consistency. The three parts to a recipe are: 1. Dose 2. Yield 3. Time My simplest coffee machine is a Breville Bambino. I think ..read more

These are my build notes for the circuit benders clone of the Roland/- Boss Dr 55 drum. The clone is called the CB-55. The original is a really simple and great sounding machine. It's definitely a classic. I think where it falls short is it's limited sequencer, and that its tricky to sync to external gear.  I loved the first DR-55 I bought so much, that I purchased a second one with the intention to mod it. But I just couldn't vandalize  it . Mods to overcome this are out there but I think its a shame to need to mod vintage gear.  These relics are getting harder to find as the ..read more

 These are my build notes for the nonlinear circuits LDRama module. tHIS eurorack 28HP light sensor module  was designed upon suggestions from Alex Brunori.  The idea is to play a video (or skype or whatever is the newest thing) fullscreen on your phone and place the phone on the LDR array. The module will generate CVs in response to what is happening in your video. links + wiki + BOM I think this is a pretty neat idea. It is designed to suit a typical 5x2 inch screen, larger screens work fine tho some info around the edges is lost. Ideally the module will sit flat, if ..read more

These are my build notes for the nonlinear circuits "stochaos" module. It's a 8hp eurorack. STOCHAOS...... It's a random rhythm pattern generator or sequencer which produces gates and control voltages  There are just two inputs ; IN & RST Everything else is an output Links + Wiki + BOM.. + CD4028 BCD to Decimal converter + Flip Flops - an introduction  + CMOS & Lunetta synths This is a decent sized build using 2 PCBs Start with the ICs and transistors. The module uses a lot of cmos CD4070  x2....... XOR CD4040 x2  .... clock ..read more

 Some notes on how to upload a hex file using AVRdude. AVRdude is a program to upload or download to on-chip memories of Microchips AVR suit of Microcontrollers.      Ill use a Olimex AVR-ISP-MKII Here is the user manual  https://www.olimex.com/Products/AVR/Programmers/AVR-ISP-MK2/resources/AVR-ISP-MK2.pdf Links  https://youtu.be/zawk99QQMVc   You can also use something like this:   or this: https://core-electronics.com.au/tiny-avr-programmer.html   Here we are using a 6-pin TPI The interface is typically used for programming tinyAVR. &nbs ..read more

These are my build notes for the Nonlinear Circuits "Beat Freqs" module Its eurorack format. The BEAT FREQS has gates ... lots of gates .... use it as a chaotic gate sequencer/event generator. Its great for driving drums This module is based on an earlier one: 82. Beat Freq - build notes - part 1               Beat Frequency - NLC - Build notes - part 2 The original had CV inputs, pots and an XNOR output. This new "improved" version gets 12 extra gate outputs and a lot more flashing LEDs. Links +Wiki +BOM The idea is to feed ..read more

These are my build notes for the Nonlinear Circuits CMOSC module Its a eurorack format module. CMOSC is an updated version of the  4U CMOSC (CMOS drone Oscillator).  Each module has 6 oscillators; the frequency of each oscillator can be set with the pots. Feeding a signal to  input will decide which oscillator signal will appear at the output. If the signal is low, oscillator A is heard, if the  signal is high oscillator B is heard.  This module gets very interesting when the outputs of each oscillator pair are fed into other pairs, which are themselves controlled ..read more

 The STP16 is an 16-step trigger/gate sequencer. This looks like lots of fun. Machine room are based in Kyiv , Ukraine. View this post on Instagram A post shared by MachineRoom (@machineroom.ua) Website Instagram ..read more