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2. Anderson Powerpole - Wikipedia

   en.wikipedia.org/wiki/Anderson_Powerpole

   Wide use in the Amateur radio [13] [14] community at +12 VDC (13.8 VDC) for emergency power and mobile radio use. Used by Warn brand of automotive winches at +12 VDC (13.8 VDC) power to the winch motor. Sometimes used by outdoor enthusiasts for +12 VDC (13.8 VDC) battery charging, especially with photovoltaic panels. Some model railroads at +12 ...

3. Clansman (military radio) - Wikipedia

   en.wikipedia.org/wiki/Clansman_(military_radio)

   The set uses USB/AM or CW with an RF output of 20–30 watts. It was manufactured by MEL at Crawley in Sussex and replaced the Larkspur SR C13 and C11 R210 HF Vehicle Stations. The radio is issued together with ancillaries to make up the operating station, including a power cable, antenna tuner unit, coaxial cables and antenna wires.

4. BC-342 - Wikipedia

   en.wikipedia.org/wiki/BC-342

   BC-342 radio receiver seen at bottom center, in use by Signal Corps operator in New Guinea BC-342 in Schweizerisches Militärmuseum Full The BC-342 could be operated from fixed and mobile positions. Power - An internal RA-20 AC rectifier power supply unit is fitted providing 250 volts DC and 12 volts AC for the receiver tube filaments (three ...

5. Linear amplifier - Wikipedia

   en.wikipedia.org/wiki/Linear_amplifier

   Power triode Eimac 3CX1500A7. Some commercially manufactured one to two kilowatt linear amplifiers used in amateur radio still use vacuum tubes (valves) and can provide 10 to 20 times RF power amplification (10 to 13 dB). For example, a transmitter driving the input with 100 watts will be amplified to 2,000 watts (2 kW) output to the antenna.

6. Military Auxiliary Radio System - Wikipedia

   en.wikipedia.org/.../Military_Auxiliary_Radio_System

   The organization that led to the Military Auxiliary Radio System was called the Auxiliary Amateur Radio System (AARS). AARS was created in November 1925 by a few dedicated pioneers in the United States Army Signal Corps led by Captain Thomas C. Rives. The United States recognized radio as a critical mode of communication during World War I.

7. Vintage amateur radio - Wikipedia

   en.wikipedia.org/wiki/Vintage_amateur_radio

   Collins S-Line, featuring separate power supply, receiver, transmitter, and speaker console, c. 1960s. Amateur radio equipment of past eras like the 1940s, 50s, and 60s that are separate vacuum tube transmitters and receivers (unlike modern transceivers) are an object of nostalgia, and many see rehabilitation and on-air use by enthusiasts. [18 ...