Wiring File Archive

This design allows to operate two intercom stations leaving the operator free of using his/her hands in some other occupation, thus avoiding...

8 Relay Control Circuit R1-8=4.7 Kohms T1-8= BD139 (R1-8=15 Kohms if T1-8=BD679) RL1-8=6V-24V dc Relay D1-8=1N4148  

Crystal Radio Audio Amplifier Circuit Here is a simple audio amplifier application a TL431 blow regulator. The amplifier will accommodate ...

Toggle switch in this article is a series of toggle switches that are controlled by infrared light. The series toggle switch is made from a ...

For more details can be seen from a series of Variable Speed ​​DC Motor Controller 12V follows. Series Variable Speed ​​DC Motor Controller ...

Stereo Power Amplifier 2x70Watt STA550 is chip audio power with BASH concept that can be connected with digital devices. 2x70Watt STA550 Ste...

10Mhz to 1 MHz Frequency Converter Circuit Part ListIC1 7404 = 1 IC2 7490A = 1 R 1 K = 2 R 3.3 K = 1 C Trim Polymer 39 pF = 1 C Electrophore...