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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.

Relay and motor wiring diagram

Relay and motor wiring diagram Relay and motor wiring diagram

Schema and layout Best power amplifier 2SA1943, 2SC500, C945, TIP42C, TIP41C

Schema and layout Best power amplifier for live sound Power amplifier sound system, sound barrier power amplifier, Best powered subwoofer car, best power amplifier for home theater, best powered Subwoofer, infinity powered subwoofer – Transistor final 4 set Part : 2SA1943, 2SC500, C945, TIP42C, TIP41C, Transformator 2A, 5A, 10A, 20A, 30A, 40A, 60A – 100A […]

Electronic circuit diagram Low power high frequency deflection amplifier

Electronic circuit diagram Low power high frequency deflection amplifier

Simple Alarm Circuit using 12C509

alarm circuit diagrams Simple Alarm Circuit using 12C509, 2N7000, 78L05

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