Search results
Results from the WOW.Com Content Network
This 1920s TRF radio manufactured by Signal is constructed on a breadboard Tuning a TRF receiver, like this 5 tube Neutrodyne set from 1924 with two stages of RF amplification, was a complicated process. The three tuned circuits, controlled by the 3 large knobs, had to be tuned in unison to the new station.
The RCA model R7 Superette superheterodyne table radio. This is a list of notable radios, which encompasses specific models and brands of radio transmitters, receivers and transceivers, both actively manufactured and defunct, including receivers, two-way radios, citizens band radios, shortwave radios, ham radios, scanners, weather radios and airband and marine VHF radios.
Audio reproduction quality of TRF sets was limited by the available loudspeakers. "High Fidelity" was not to become a radio marketing concept until the mid-1930s and was not realized until the advent of FM broadcasting. Reaction sets, also known as regenerative receivers, rely on positive feedback to achieve adequate gain. This approach ...
The Majestic Model #71 introduced in 1927, for example, was a tuned radio frequency receiver with a 9-inch (23 cm) speaker, powered from AC house current. [10] This was a considerable improvement over previous radios having typically poor selectivity and producing inferior sound from old-fashioned horn speakers or earphones.
The Antique Wireless Association (AWA) is chartered as a non-profit educational organization in New York State and is an IRS 501(c)(3) tax-exempt corporation based in Bloomfield, New York. [1] It was originally established in 1952 by Bruce Kelley, George Batterson, and Linc Cundall for operators and collectors of radio equipment. [ 2 ]
The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.
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 ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!