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autodyne
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autodyne
autodyne Radio. (ˈɔːtəʊdaɪn) [f. auto-1 + -dyne.] An electric oscillating circuit in which the same valve is used for rectification and generation of oscillations. Also attrib.1918 W. H. Eccles Wireless Telegr. (ed. 2) 497 Autodyne Reception, Self-Heterodyne Reception, are names given to those modes...
Oxford English Dictionary
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Autodyne
The autodyne circuit was invented by Edwin Howard Armstrong of Columbia University, New York, NY. Autodyne detector after RF amplifier and limiter
; single tube in VT fuze used as oscillator, transmitter, and autodyne detector.
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self-heterodyne
self-ˈheterodyne, a. Radio. [self- 1 e.] Being or employing a heterodyne receiver in which the same valve is used for the generation and rectification of local oscillations. Hence self-ˈheterodyning ppl. a. and vbl. n.1918 [see autodyne]. 1922 Proc. IRE X. 245 In the various forms of self-heterodyne...
Oxford English Dictionary
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Pentagrid converter
This was known as the autodyne mixer. Some manufacturers that had adopted the autodyne mixer converted some, if not all, of their designs to pentagrid mixers.
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-dyne
-dyne, suffix (daɪn) forming ns. repr. Gr. δύναµις power, used in the formation of scientific, esp. electrical, terms. Examples: aerodyne, amplidyne, autodyne, heterodyne.
Oxford English Dictionary
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Ottó Benedikt
Literature
Die neue elektrische Maschine „Autodyne”. Budapest: Akadémiai. 1957.
Nagytelítésű bonyolult mágneses körök új számítási módszere. The autodyne: A new electrical machine. New York: Pergamon Press. 1960.
Beiträge zur Weiterentwicklung der Theorie der Gleichstrommaschine I–II.
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Esther Marion Armstrong
He had sold his patents for the autodyne (regenerative circuit) and frequency modulation to Westinghouse, which then owned RCA, making him a millionaire
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Regenerative circuit
CW reception (autodyne mode)
For the reception of CW radiotelegraphy (Morse code), the feedback is increased just to the point of oscillation. The term autodyne predates multigrid tubes and is not applied to use of tubes specifically designed for frequency conversion.
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Vladimir Damgov
Short-Range Autodyne System (Patent of the Republic of Bulgaria No 45520).
Short-Range Radar (Patent of the Republic of Bulgaria No 47466).
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Proximity fuze
One tube was an oscillator connected to an antenna; it functioned as both a transmitter and an autodyne detector (receiver).
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Radio receiver
Regenerative (autodyne) receiver
The regenerative receiver, invented by Edwin Armstrong in 1913 when he was a 23-year-old college student, was used very This mode was called an autodyne receiver.
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List of vacuum tubes
Tubes with indirectly heated cathodes
With a DC heater
15 – Sharp-cutoff pentode, used in farm radios, in autodyne circuits requiring a separate cathode
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