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Range Meter Circuit

Radio Frequency Meter – Range Meter Circuit Schematic diagram of the signal strength meter – Range Meter Circuit using 1N4148

Modified Electronics circuit power supplay

Further adjustments include a rectified and filtered heater supply to the triodes eliminating AC hum coupled to the signal path via parasitic wiring capacitances. A power transformer with a 350V-0-350V secondary supply an increased voltage supply to the output section with is then stepped down to the 5F6-A’s voltage supplies to the phase splitter, cathode […]

Audio Amplifier Circuit using TDA1562Q

Audio Amplifier Circuit using TDA1562Q

5 Band Dual Graphic Equalizer Amplifier circuit

5 Band Dual Graphic Equalizer Amplifier circuit using KA22234 5 Band Dual Graphic Equalizer Amplifier circuit using KA22234 5 BAND GRAPHIC EQUALIZER AMPLIFIER The KA2223 is a monolithic integrated circuit consisting of an operational amplifier with five resonant circuits and a active filter, an it is suitable for radio-cassette tape recorders, car stereos or music […]

Simple Touch switch schematic

Simple Touch switch schematic using 4011

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