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This battery-powered metal detector utilizes four exclusive-OR gates from the 4030 CMOS integrated circuit. The gates are configured as twin oscillators, with a search coil acting as the inductance element in one of the oscillators. When the coil approaches...
The audio circuit depicted in the figure is commonly utilized in color television systems. The pin functions and reference voltages for the TA8218AH are as follows: Pin 1: 1.9V - inverting input; Pin 2: 2.1V - R-channel audio signal...
The Jammer is a very small circuit and can fit inside a small plastic box with 9V battery inside. It can be very illegal if you attach an external antenna so don't. adjust frequency by turning trimmer. It is...
The power supply described utilizes a regulator composed of two NPN transistors. One transistor functions as the power regulator, while the other controls the output voltage. This power supply offers an adjustable output voltage range of 6-12 VDC. The...
A 1969 Princeton Reverb amplifier is identified as utilizing the AA764 circuit design. Various online resources provide schematics for Fender amplifiers. The Princeton Reverb amplifier, particularly the model from 1969, is renowned for its warm tone and versatile sound characteristics,...
The circuit diagram illustrates the SF04E emission and the corresponding SF04B. Part (A) depicts the composition of the remote control transmitter SF04E, along with its compatible receiving circuit, which can be assembled using the SJ04H. Part (B) presents the...
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