GB253146A - Improvements in or relating to wave signalling systems - Google Patents

Improvements in or relating to wave signalling systems

Info

Publication number
GB253146A
GB253146A GB14328/26A GB1432826A GB253146A GB 253146 A GB253146 A GB 253146A GB 14328/26 A GB14328/26 A GB 14328/26A GB 1432826 A GB1432826 A GB 1432826A GB 253146 A GB253146 A GB 253146A
Authority
GB
United Kingdom
Prior art keywords
relating
signalling systems
hazeltine
wave signalling
conductance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB14328/26A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US12000A external-priority patent/US1648808A/en
Application filed by Hazeltine Corp filed Critical Hazeltine Corp
Publication of GB253146A publication Critical patent/GB253146A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/14—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means
    • H03F1/16—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means in discharge-tube amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/46—Reflex amplifiers
    • H03F3/48—Reflex amplifiers with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Transmitters (AREA)
  • General Induction Heating (AREA)

Abstract

253,146. Hazeltine Corporation, (Assignees of Hazeltine, L. A.). Feb. 27, 1925, [Convention date]. Drawings to Specification. Transformers.-In a radio frequency amplifier the primary winding of the output transformer has an input conductance at resonance substantially higher than the plate conductance of the valve with which it is associated. The detailed description is identical with that contained in Specification 248,311. Specifications 222,895 and 223,181, [both in Class 40 (v), Wireless signalling &c.], also are referred to. Reference has been directed by the Comptroller to Specification 233,053.
GB14328/26A 1925-02-27 1925-05-11 Improvements in or relating to wave signalling systems Expired GB253146A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US12000A US1648808A (en) 1925-05-04 1925-02-27 Wave signaling system
CA1648808X 1925-05-04
US64533A US1869894A (en) 1925-02-27 1925-10-24 Radio beceiving system
US158839A US1650353A (en) 1925-02-27 1927-01-04 Wave signaling system
US221647A US1649589A (en) 1925-02-27 1927-09-24 Wave signaling system
US229912A US1692257A (en) 1925-02-27 1927-10-31 Wave signaling system

Publications (1)

Publication Number Publication Date
GB253146A true GB253146A (en) 1926-08-11

Family

ID=27543567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14328/26A Expired GB253146A (en) 1925-02-27 1925-05-11 Improvements in or relating to wave signalling systems

Country Status (4)

Country Link
US (5) US1869894A (en)
DE (1) DE514965C (en)
FR (1) FR598968A (en)
GB (1) GB253146A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2698334C1 (en) * 2016-08-05 2019-08-26 Увекс Арбайтсшутц ГмбХ Protective helmet

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812687A (en) * 1953-11-12 1957-11-12 Westinghouse Electric Corp Optical image projection system for fluoroscopic apparatus
US3835399A (en) * 1972-01-24 1974-09-10 R Holmes Adjustable electronic tunable filter with simulated inductor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2698334C1 (en) * 2016-08-05 2019-08-26 Увекс Арбайтсшутц ГмбХ Protective helmet
RU2698334C9 (en) * 2016-08-05 2019-11-01 Увекс Арбайтсшутц ГмбХ Protective helmet

Also Published As

Publication number Publication date
USRE17530E (en) 1929-12-17
US1692257A (en) 1928-11-20
DE514965C (en) 1930-12-29
FR598968A (en) 1925-12-30
US1650353A (en) 1927-11-22
US1869894A (en) 1932-08-02
US1649589A (en) 1927-11-15

Similar Documents

Publication Publication Date Title
GB253146A (en) Improvements in or relating to wave signalling systems
GB301070A (en)
GB378134A (en) Electrical coupling circuit for thermionic valve circuits
GB378733A (en) High frequency signalling systems
GB281633A (en) Improvements in or relating to electrical amplification systems
GB204327A (en) Improvements in or relating to high frequency signaling systems
GB256266A (en) Wireless receiving set for compensating disturbances
GB407166A (en) Ultra-short wave high frequency amplifier
GB277397A (en) Improvements in or relating to wireless receiving apparatus
GB248311A (en) Improvements in or relating to thermionic valve circuits
GB274899A (en) Improvements relating to radio receiving systems
GB275388A (en) Improvements in and relating to thermionic valve circuits
GB241618A (en) Improvements in radio receiving sets
GB383668A (en) Wireless signalling system
GB264304A (en) Improvements in or relating to radio-frequency amplification systems
GB293788A (en) Improvements in and relating to apparatus for amplifying electrical energy
GB273772A (en) Improvements in or relating to radio transmission systems
GB256641A (en) Improvements in or relating to high frequency electric signalling apparatus
GB274901A (en) A system of connections for multiple thermionic valves
GB358996A (en) Improvements in or relating to systems of amplification of high-frequency energy
CA270212A (en) Radio frequency choke coil system
GB207781A (en) Improvements in wireless and like signalling
GB284237A (en) Improvements in or relating to radio transmitters
GB283121A (en) Improvements in radio receiving systems
GB386668A (en) Improvements in or relating to thermionic valve circuits