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Posts tagged SWR、

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.

Low Power Amplifier Circuit

Best Low Power Amplifier Circuit Diagram Driver PCB and Lay out Power Amplifier Circuit Diagram using 1 N4937 2 N5551 2 N5401 2 SC4793 2 SA1837

Combo tube amp

Combo tube amp circuit using 6CL6 Combo tube amp circuit using 6CL6

18W Audio Amplifier Circuit using TDA1521

18W Audio Amplifier Circuit using TDA1521

MAX2235 +3.6V, 1W Auto Power Amplifier for 900MHz Applications

MAX2235 +3.6V, 1W Autoramping Power Amplifier for 900MHz Applications MAX2235 silicon RF power amplifier (PA) is designed for use in the 900MHz frequency band. It operates directly from a single +2.7V to +5.5V supply, making it suitable for use with 3-cell NiCd or 1-cell Li-Ion batteries. The device delivers +30dBm (1W) typical output power from […]

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