Idle power consumption

How much standby power do your devices burn? I’m hacking an energy meter to be super sensitive and measure the tiniest vampire power. […]

Digital Power Supply – Part 2: Prototype

The first prototype of my digitally controlled power supply. […]

Unlocking stuck photo filters

Simple way to unlock 2 stuck photo filters with nothing but a ribbon. […]

Digital Power Supply – Part 1: Concept

Started working on a digitally controllable power supply. […]

555 / 556 H bridge

Simple H-bridge using 555’s. […]

Toner transfer to ABS

Yes, apparently you can transfer toner to ABS to make nice project boxes. […]

Linear LED power supplies

How to drive LEDs? WIth constant current supplies, of course. […]

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