DIY-SMU Source-Measure Unit.
ranges up to +/- 150V and 6 current ranges 100mA down to 1uA
in an Arduino-based SMU project
18bit precision DAC.
precision voltage source using 18 bit DAC. Now with SCPI!
Power Supply Common Mode noise in DC-DC and
AC-DC power supplies
LM399 Precision 10V voltage reference
Analysis of solar panel shading, Solar panel simulator,
Teardown of a low-cost Grid-Tie Inverter.
E-Load DIY Electronic
(New) 100-200W E-load The project that
rule them all. This simple board replaces up to 8 USB, 12V and
5V Power Bricks.
Arduino based panel meter with
OLED display and front panel controls
Arduino-based Power Supply /
Electronic Load project
DIY Synthesizer Projects
: 3 channel Lab supply.
Analog Polysynth Project
modular Analog Polyphonic Synthesizer, Teensy Controller
Ambika 4P Filter Board: Budget
SMT DIY version of Ambika filter / voice
X10 Power Line Control
Including a simple X10 signal
Power for Audio
Discussion of power noise issues and
solutions for a RPI Volumio audio server project.
History of my DIY
50 years of DIY amplifiers, preamps,
Whole-house audio systems and speakers.
to IDC Ribbon Cables
Why I like ribbon cable.
How I spent the 80s and 90s. MaxVideo, MV20,
MaxPCI, product history and technology.
Restoring a Sun 4 VME
Unique VME board Sparcstation 1 system.
Can he do it??
Electronics Repair / Recondition Projects:
HP / Agilent 4395A Spectrum /
Network / Impedance analyzer repairs:
2 of them. Hint:
it's the power supplies
Lambda LPD and LQD Power Supply repair /
Repair and upgrade these classic power supplies
HP 3466A Digital
Multimeter DMM repair and Lithium battery mod:
and upgrade a nice, older, DMM
2005 Tower Speakers
. Upgrading aging
Bose-901s with modern tower speakers
Power-One Power Supply Hackers.
Fun with linear Power Supplies, Also Condor, Bel Power and
Fun with Tubes.
Vacuum tubes, high
voltage, and a guitar amp project
Molex KK Connectors.
. Particularly the Due,
ARM based processor
USB SPI Control
. Control stuff from
Multi-Zone Audio System
audio, STM32 Design Challenge project. Published in Circuit
Cellar Jan-Feb 2014
. ARM Cortex M3 Microprocessor
Audio system for PCs
including PC to Stereo
Even Older Projects:
Embedded AVR and LCD microprocessor
projects for home and boat
How I used to prototype
Last updated 2/19/2023