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Posts tagged फ़िल्टर

Schematic diagram for a broadband QRP SWR metering circuit and SSB TRANSCEIVER 80M / 40M boster filter IF Radio

A schematic diagram for a broadband QRP SWR metering circuit for use in a QRP antenna tuner. One could simply hold a momentary DPDT switch down and watch the LED while tuning the capacitors of the antenna tuner for minimum or zero light.

Counterdivider and oscillator using CD4060B

Counterdivider and oscillator using CD4060B / cd4017

Headphones Circuit

Headphones Circuit using SMI1458 1458 Headphones Circuit using SMI1458, 1458

Audio Recorder Circuit

Audio Recorder Circuit using LM324, PIC16F84A, ULN2803A, 1N4148, 2N3904

Frequency converter schematic

Frequency converter schematic Frequency converter schematic using TR Frequency converter schematic Frequency converter schematic

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