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A LED is used to indicate when a DC voltage reaches 5 volts or more. The LED should be fully illuminated at 5 volts and not dim at 4.5 volts or lower. The circuit should be constructed using discrete...
This circuit matches the very high impedance of ceramic cartridges, providing unity gain and low impedance output. By "loading" the cartridge with a 2.2MΩ input resistance, the cartridge characteristics are adjusted to closely compensate for the RIAA recording curve....
This circuit is an inverting amplifier with an output voltage swing from approximately 0 to +300 V. Any transistor can be utilized for Q1, as long as the breakdown voltage exceeds 300 V (since the full high voltage will...
The DC voltage for the generator field winding is supplied by a three-phase thyristor rectifier. In instances of incorrect operation, phase misalignment, or system failure, the rectifier may generate hazardous conditions, leading to over-voltage insulation issues on the DC...
The intended use of the 24 volts is to power an amplifier that will supply wave forms of up to a couple hundred Hz to bias a varactor or pair of varactors in an RF circuit. This meant that...
A high voltage step-up DC power supply using adjustable flyback conversion. The described circuit is a high voltage step-up DC power supply that employs an adjustable flyback converter topology. Flyback converters are widely used in applications requiring electrical isolation and...
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