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Posts tagged 80M

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.

Stereo to Mono RCA

Stereo to Mono RCA using IC TL082 audio circuit diagram

Color LCD display Nokia 6610

LCD module Nokia 6610 Using MC34063, BC846 Before repairing Nokia 6610 , should see the set of the Nokia 6610 lcd module

Create an audio mixer Guitar – BC 26s Splitter Mixer

BC 26s Splitter Mixer. BC 26s Splitter Mixer. It is small , extremely versatile, and affordable. This small , very versatile, and affordable. It is a 6 in / 2 out mixer, a 2 in / 6 out splitter / distribution amplifier, and a 6 in / 6 out buffer amplifiers. This is a 6 […]

PWM Controller IC

PWM Controller IC Circuit and schema using MAX17000A on VDDQ, VTT, and VTTR The MAX17000A is a PWM controller IC which provides complete power solutions in notebook DDR, DDR2, and DDR3 memory. This consists of step-down controller, source-sink LDO regulator, and reference buffer are required to generate VDDQ, VTT, and VTTR rail. PWM Controller IC

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