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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.

Circuit diagram for DVD servo control

Circuit diagram for DVD servo control

Portable generator circuit

Portable generator circuit using 2N2222, 2SA733 Portable generator circuit using 2N2222, 2SA733

Simple Shunt Reg Circuit

Simple Shunt Reg Circuit

High Power Amplifier circuit for YOU

High Power Amplifier circuit for YOU High Power Amplifier circuit using TIP3055, BD140, BD139, BC546 350 Watt High Power Amplifier for multiple Custom Home Audio Distribution and Home Theater Applications. A power amplifier can exert control over the loudspeaker and reduce ringing. Damping is the ability of a power amplifier circuit to control loudspeaker

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