TDA2040 Instrument Amplifier
the need for small and portable amplifiers has arisen mainly by a desire to come up with some sort of all-purpose busking amplifier.…
Author: abram
ARDUINO: Setting up a Gentoo development environment…
if you’re reading this post, most likely you’re having issues with setting up Crossdev as mentioned on the arduino.cc site. i tried countless…
SCHEMATIC: TL082 9V Active EQ…
an experimental EQ circuit based of the TL082 datasheet. i modified it to use a 9V battery, but could probably still use some…
SPICE: ngSpice plot test…
nothing too special here. i’ve been practicing my SPICE skills and attempting to work with a single-supply active EQ circuit based on the…
Mellotronium revised…
here’s an update on the new additions/approach to the Mellotronium. i’m attempting to redo the SD card routines once i get the functionality…
mobile APRS setup…
here’s a picture of my mobile APRS setup in the Jeep. it’s been a fun project from time to time. eventually, i plan…
the Stirgiform PT2399 delay…
two days worth of soldering and layout. it’s a combination of the Magnus Modulus and Rebote delay schematics. i couldn’t get the mixing…
Arduino: LFO Generator
here’s a treat for anyone that’s into the audio side of arduino. it’s an 8-bit two-timer based LFO Generator using timer 0/2 on…
Arduino: the 8-bit Mellotronium prototype
i’ve been pretty Arduino obsessed over the past month. i got in my head this idea about building a midi-controlled digital sampler that…
Arduino: second verse, same as first… sort of
well, not really. feeble attempt and making some sort of microprocessor controlled tempo clock, but a good exercise in the ATMEGA328s finicky behavior.…