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Posts tagged boster、

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.

home amplifier

home amplifier using lm3876

Filter for Headphone AMP schema

3KHz Low Pass Filter for Headphone AMP schema using LM368, MF6-50 Headphone Amplifier Schematic I built a portable headphone amplifier for testing purposes. Each channel uses a single Burr-Brown LM368, MF6-50 opamp in inverting configuration. It has adequate current capability to drive most headphones without an output stage. I have used it with Sennheiser 465s […]

Circuit Diagram active passive subwoofer lets you enjoy incredible sound quality for your HiFi system or Home

Adding a Subwoofer – Building a regulator Active Loudspeaker ….. The Lux Kit also works with circuit boards, but the advantage of the Lux Kit is that ….. This Owner’s and Service Manual contains all schematic diagrams and values regulator Active subwoofer lets you enjoy incredible sound quality for your HiFi system or Home Theater […]

High voltage op amp

high voltage op amp using UA741 The op-amp UA741 is wired to operate in three frequency ranges- high, medium and low. The circuit is designed such that the circuit produces +/-20 dB boost or attenuation for 50Hz,1KHz and 10Khz by varying POT’s R2. The maximum amplification for any of these bands at maximum supply voltage […]

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