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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.

Make suplay power circuit diagram for the best guitar

Make suplay power circuit diagram for the best guitar The power supply is again nice and simple, and does not even use traditional regulators for the preamp. The power transformer should be a toroidal for best performance, but a convention tranny will do just fine if you cannot get the toroidal. Do not use a […]

China tv circuit diagram – Original datasheet

China tv circuit diagram – Original datasheet China tv circuit diagram free download

Where can I get TV circuit diagram to repair my own TV? Can’t seem to find it on the find on the web?

SukhdevS asked: The model is Sony Trinitron KVJ14P1S (14 inch). I stay in KL, Malaysia.

3W Audio Amplifier Circuit using TA7230P

3W Audio Amplifier Circuit using TA7230P

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