GB204663A - An improved crystal receiver set for wireless signalling - Google Patents

An improved crystal receiver set for wireless signalling

Info

Publication number
GB204663A
GB204663A GB1657523A GB1657523A GB204663A GB 204663 A GB204663 A GB 204663A GB 1657523 A GB1657523 A GB 1657523A GB 1657523 A GB1657523 A GB 1657523A GB 204663 A GB204663 A GB 204663A
Authority
GB
United Kingdom
Prior art keywords
crystal
condenser
receiver set
crystal receiver
improved crystal
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
GB1657523A
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.)
LIONEL LEONARD RAVENSCROFT DEA
Original Assignee
LIONEL LEONARD RAVENSCROFT DEA
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
Application filed by LIONEL LEONARD RAVENSCROFT DEA filed Critical LIONEL LEONARD RAVENSCROFT DEA
Priority to GB1657523A priority Critical patent/GB204663A/en
Publication of GB204663A publication Critical patent/GB204663A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/08—Demodulation of amplitude-modulated oscillations by means of non-linear two-pole elements
    • H03D1/10—Demodulation of amplitude-modulated oscillations by means of non-linear two-pole elements of diodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/08—Constructional details, e.g. cabinet
    • H04B1/086—Portable receivers
    • H04B1/088—Portable receivers with parts of the receiver detachable or collapsible

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

204,663. Dean, L. L. R. June 26, 1923. Receiving sets, construction of.-A complete receiving set is contained in the casing of a telephone receiver. As shown, the crystal 6 co-operates with an adjustable point 7, but a two-crystal detector may be used or the crystal may be movable eccentrically with respect to a fixed point. A variable condenser 10 and inductance 8 are arranged as shown. The adjusting handles pass through insulating bushes. A second telephone may be provided and may contain a condenser. The condenser or inductance may be fixed and a variometer may be provided. Specification 208,414 is referred to.
GB1657523A 1923-06-26 1923-06-26 An improved crystal receiver set for wireless signalling Expired GB204663A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1657523A GB204663A (en) 1923-06-26 1923-06-26 An improved crystal receiver set for wireless signalling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1657523A GB204663A (en) 1923-06-26 1923-06-26 An improved crystal receiver set for wireless signalling

Publications (1)

Publication Number Publication Date
GB204663A true GB204663A (en) 1923-10-04

Family

ID=10079770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1657523A Expired GB204663A (en) 1923-06-26 1923-06-26 An improved crystal receiver set for wireless signalling

Country Status (1)

Country Link
GB (1) GB204663A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805332A (en) * 1955-01-20 1957-09-03 Gustave Miller Subminiature portable crystal radio receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805332A (en) * 1955-01-20 1957-09-03 Gustave Miller Subminiature portable crystal radio receiver

Similar Documents

Publication Publication Date Title
GB546141A (en) Improvements in or relating to wireless receivers
GB204663A (en) An improved crystal receiver set for wireless signalling
GB160981A (en) Improvements in portable radio telegraphic and telephonic apparatus
GB472593A (en) Improvements in and relating to electric condensers
GB333972A (en) Improvements in or relating to coupling elements, particularly for volume control in wireless circuits
GB268530A (en) Improvements in and relating to geared variable condensers for wireless
GB236410A (en) A new or improved tuning device for use in wireless telegraphy and telephony
GB252767A (en) Improvements relating to wireless receivers
GB237997A (en) Improvements in telephone receivers
GB260035A (en) Improved means for damping an oscillating or alternating current circuit
GB287484A (en) Improvements in or relating to piezo-electric devices
GB593749A (en) Improvements in or relating to electrical condensers
GB317956A (en) Improvements in or relating to radio apparatus
GB383692A (en) Improvements relating to aerial coupling devices
GB232659A (en) Improvements in and relating to wireless aerial circuits
GB228616A (en) Improvements in wireless receiving apparatus
GB471982A (en) Improvements in variably coupled tuned circuits for use, for example, in superheterodyne wireless receivers
GB424407A (en) Improvements in electrical condensers
GB376579A (en) Improvements in or relating to variable condensers
GB251332A (en) Improvements in radio receiving sets
GB453759A (en) Improvements in or relating to radio and other transmitter installations
GB491903A (en) Improvements in or relating to circuit arrangements for suppressing undesired frequencies in wireless receiving apparatus
GB267993A (en) Radio frequency amplifier
JPS5312249A (en) Double tuned circuit
GB191119829A (en) Improvements in Receiving Apparatus for use in Radio Telegraphy and Telephony.