A very interesting find on Ebay from several years ago was an all steel version of a J.H.W. CLIMAX Co padlock.
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J.H.W. CLIMAX Co — Padlock
Mettler K4T Balance
Cleanup and check of a Mettler Instruments K4T single pan top loading balance.
After owning and using this K4T balance for over twelve years, I thought it was time for a full cleanup and accuracy check. When first purchased from Ebay it received a quick cleanup, function, and accuracy check, before I quickly put it to use.
Continue reading “Mettler K4T Balance”ESI Dekastat DS1463 12K decade resistor repair
Cleanup and repair of an ESI Dekastat model DS1463 12K Ohm coaxial decade resistor.
Power Designs 6050C Revision 1.2 display update
Fixing issues with the 4 digit plus mode revision 1.1 multimeter board.
Upgrading a Power Designs Inc. 6050C with a 4 digit plus mode display
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.
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Hewlett Packard 6200B Power Supply Repair
Cleanup, repair, and upgrade of a Hewlett Packard (HP)6200B power supply.
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Power Designs 6050C Power Supply Display Upgrade
Cleanup, repair, calibration check, and display upgrade of a Power Designs Inc. 6050C Universal DC Source.
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Prototype I2C Display Board with EEPROM
My latest project is a prototype I2C RGB LCD display board with added EEPROM and some other extras.
ESI 250 DE Universal Impedance Bridge
Repair and Cleanup of a ESI 250 DE Universal Impedance Bridge.
GPS Disciplined 10 MHz Oscillator
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)
Power Designs C500 Precision DC Source
Cleanup, repair and Calibration of a Power Designs Inc. C500 Precision DC Source.
Power Designs 2005A Precision Power Source
Cleanup and Calibration of a Power Designs Inc. 2005A Precision Power Source.
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Hewlett Packard 5300B Measuring System
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.
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Restoring a Power Designs Inc. 6150 power supply
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Power Designs 6050D Power Supply Repair
Bringing a Power Designs Inc. 6050D Universal DC Source back to life.
ATtiny85 breakout with selectable LED’s
Constructing an ATtiny85 breakout board for prototyping and testing.
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