CARD HTML A current actuated relay driver turns on accessories when a primary draws AC current.
Tivo Relay PDF A patch for an early Tivo TV recorder that refuses to talk over the telephone because a MOSFET switch has failed.
Macintosh connector pins XLS A Microsoft Excel spreadsheet with a collection of pinout data for early Macintosh computers.
MacBattery 4.5 volt HTML Making a 4.5 volt PRAM battery.
MacBattery 3 volt HTML Using carbon zinc cells in place of a lithium PRAM cell..
Living Power HTML A method of getting a few volts directly from an AC power line using a silicon controlled rectifier.

Last Update 27 Feb, 2007