Intermittent wiper controller by 2N4401

Friday, October 5th, 2007

The intermittent wiper circuit shown above causes the auto’s windshield wipers to wipe once every several seconds instead of constantly wiping. The circuit may be added to older cars to provide the intermittent function or it may be used to replace broken wiper circuits in modern cars. The delay is continuously adjustable with the potentiometer [...]

12V 6 Amp Solar Power Center (SPC2) by TL2272

Friday, August 3rd, 2007

The SPC2 is a solar power center, it can be used to handle all of the power functions for small 12 Volt solar powered devices. It contains a photovoltaic charge controller and a low voltage load disconnect circuit. The low voltage disconnect has a load on-off switch, and a battery low voltage indicator. By using [...]

Light Relay Switch By BC547 & BC337

Monday, June 4th, 2007

This Circuit is easy, Light Relay Switch By BC547 & BC337. Circuit Light Relay Switch By BC547 & BC337 PCB Light Relay Switch By BC547 & BC337 Related Links More circuit about Light Switch Dark Activated switch by IC 741 Backup Lamp light fails by Vmos Dark-Detecting LED Simple Light Actuated Relay by Phototransistor Solar [...]