GB233564A - Improvements relating to crystal detectors for wireless telegraphy and telephony - Google Patents

Improvements relating to crystal detectors for wireless telegraphy and telephony

Info

Publication number
GB233564A
GB233564A GB1697024A GB1697024A GB233564A GB 233564 A GB233564 A GB 233564A GB 1697024 A GB1697024 A GB 1697024A GB 1697024 A GB1697024 A GB 1697024A GB 233564 A GB233564 A GB 233564A
Authority
GB
United Kingdom
Prior art keywords
detector
pair
telephony
improvements relating
crystal detectors
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
GB1697024A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1697024A priority Critical patent/GB233564A/en
Publication of GB233564A publication Critical patent/GB233564A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

233,564. Rosenthal, H. L. July 15, 1924. Receiving systems; crystal detectors; receiving sets, construction of. -The detector is mounted on a base e with a pair of terminals i, f at one end and a pair h, g at the other connected as shown to the points b, c at which the crystal cup and contact arm are connected by wires arranged in grooves or in a recess in the base. Either pair is connected to aerial and earth, the other being connected to the telephones. The set may resemble a domino or charm and may be mounted on a telephone earpiece. The terminals i, h and f, g may be connected together through a tuning coil instead of direct. A construction of detector in which all the parts are made of wire is shown in Fig. 4. When the detector is in the form of a charm, the contact arm is bowed to provide a means for carrying it. Reference has been directed by the Comptroller to Specifications 22164/10, 16163/12 and 2935/14.
GB1697024A 1924-07-15 1924-07-15 Improvements relating to crystal detectors for wireless telegraphy and telephony Expired GB233564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1697024A GB233564A (en) 1924-07-15 1924-07-15 Improvements relating to crystal detectors for wireless telegraphy and telephony

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1697024A GB233564A (en) 1924-07-15 1924-07-15 Improvements relating to crystal detectors for wireless telegraphy and telephony

Publications (1)

Publication Number Publication Date
GB233564A true GB233564A (en) 1925-05-14

Family

ID=10086894

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1697024A Expired GB233564A (en) 1924-07-15 1924-07-15 Improvements relating to crystal detectors for wireless telegraphy and telephony

Country Status (1)

Country Link
GB (1) GB233564A (en)

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