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Archives for lcd modules

PIC16F84 circuit , for LCD Nokia

PIC16F84 circuit , for LCD Nokia 3510i

Audio Amplifier Circuit using STK0060

Audio Amplifier Circuit using STK0060

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.

LM3909 LED Flasher / Oscillator circuit diagram

This page features a replacement circuit for the LM3909 LED Flasher / Oscillator using discrete components. The circuit is functionally the same as the integrated LM3909 but has a minor variations in values of the components used. If you like to use the integrated circuit LM3909 build be Flasher Circuit. But may get into trouble […]

Phase Invert Switch circuit diagram

Phase Invert Switch circuit diagram

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