Finally assembling the electronic load modules for some basic testing of minimum voltage at different current levels, and heatsink thermal capacity.Continue reading “Linear MOSFET Electronic DC Load — Part 2″
Repair and cleanup of a vintage Keithley Instruments 600A Electrometer.Continue reading “Keithley 600A Electrometer Repair”
Cleanup and repair of an ESI Dekastat model DS1463 12K Ohm coaxial decade resistor.Continue reading “ESI Dekastat DS1463 12K decade resistor repair”
Fixing issues with the 4 digit plus mode revision 1.1 multimeter board.Continue reading “Power Designs 6050C Revision 1.2 display update”
Developing a new 4 digit plus mode display for a Power Designs Inc. 6050C power supply capable of displaying current at a milliamp resolution, and voltage at a 10 mV resolution.
Cleanup, repair, and upgrade of a Hewlett Packard (HP)6200B power supply.
Cleanup, repair, calibration check, and display upgrade of a Power Designs Inc. 6050C Universal DC Source.
My latest project is a prototype I2C RGB LCD display board with added EEPROM and some other extras.
Repair and Cleanup of a ESI 250 DE Universal Impedance Bridge.
A GPS disciplined 10 MHz oscillator and distribution amplifier project using a Sparkfun Pro mini microprocessor and an Isotemp 134–10 OCXO. (Click on images for larger version)
Cleanup, repair and Calibration of a Power Designs Inc. C500 Precision DC Source.
Cleanup and Calibration of a Power Designs Inc. 2005A Precision Power Source.
Repairing and clean-up of a Hewlett Packard (HP)5300B Measuring System with a 5305B 1,300 MHz Counter module.
This was supposed to be just a clean-up project, but this one turned into a bit more work that I had expected.
Restoring a Power Designs Inc. 6150 power supply
Bringing a Power Designs Inc. 6050D Universal DC Source back to life.
Constructing an ATtiny85 breakout board for prototyping and testing.