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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.

LCD Modules diagram

LCD Modules using PCF8574 8 bit I2C LCD Modules using PCF8574 8 bit I2C

Electronics Circuit clock displays and clock timing for single board computer

Electronics Circuit clock displays and clock timing for single board computer The Clock Controller was designed to be an exemplary of using control timer 0 interrupt, 7-segment LED and keypad scanning. It provides 1-bit sink current driving output, for driving a relay, opto triac, say. Many projects requiring7-segment display and keypad interfacing may get the […]

Simple Electronic component detection Circuit

Simple Electronic component detection Circuit using NE555, BC108

Audio Amplifier Circuit using uPC1318AV

Audio Amplifier Circuit using uPC1318AV

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