Salt Water Battery:  (Circuit / schematic design added 6/06)

Selection of robotics projects:  (Electronic circuit added 4/05)

Servo Pulse to Dual H-Bridge :  interface performs vital control functions needed for propulsion and steering of a “fighting robot”.    (electronic project added 2/06)

Servo Pulse to PWM :  converter connects an H-Bridge to radio control receivers or robotic circuits.    (electronic project added 2/06)

Signal Generator:  This is a lovely project for home constructors keen on building their own test and measurement (T&M) equipment. It makes use of the ICL8038 signal generator chip, manufactured by Intersil. An improved version, made by Exar corp. is available (XR8038A). It can be used to produce three types of waveforms, sine, square and triangle. The frequency, amplitude and duty cycle can be varied, and selection of waveform is done digitally. To further reduce the complexity, a 3-to-1 switch may be... (electronic project added 2/06)

Simple Choc Block Supply:  A very simple adjustable power supply can be built on a single piece of chocolate block based on the L200CV IC. The output is variable between 0 and 30V, with an adjustable current limit up to 2 amps. (electronic project added 2/06)

SMT Desoldering Station:  Working with SMT is quite difficult without an smt hot air pencil. Anyone with basics electronics can try to build it, it's made with common materials.  (electronic construction project added 10/05)

Soft start Controller is gentle on loads:  11/22/2001 EDN - Design Ideas / (Electronic circuit added 10/03)  The control circuit in Figure 1 senses a given load and automatically soft-starts the load by synchronously adjusting the power to that load. You can also manually adjust the power delivered to the load by controling the phase angle of the line voltage across the load. The phase-angle adjustment for every ac half cycle covers 0 to 180 . .

Stirling Prayer Engine :  built with simple parts and runs from the heat of a votive candle.    (electronic project added 2/06)

TB068: How to Modify the PICDEM LIN for the MCP201:  Microchip Application Note - Published 23-May-03   (Circuit / schematic design added 6/06)

Tektronix THS720 Screen Capture Software. :  Basic software, not like the fancy stuff that costs real money.    (electronic project added 2/06)

Tracking Dual Rail Power Supply:  This article details the construction of a bench top power supply that can be used to power circuits or devices during development work in the lab. More specifically it is an adjustable, tracking, dual rail supply which means there are two supply voltages, one positive, one negative, that are adjusted by a common potentiometer such that supply voltages are equal in magnitude. It is capable of supplying up to +/- 15V DC at up to 1A. This is sufficient for the majority of small signal e.. (electronic project added 2/06)

Variable Power Supply 1 30 Volt@ 1.5A:  (electronic construction project added 10/05)

Yet Another Mobile MP3 Player. :  This is an earlier player using a conventional PC motherboard, so the power supply I designed is quite compatible.    (electronic project added 2/06)