GB207720A - Improvements in wireless receiving circuits - Google Patents

Improvements in wireless receiving circuits

Info

Publication number
GB207720A
GB207720A GB51723A GB51723A GB207720A GB 207720 A GB207720 A GB 207720A GB 51723 A GB51723 A GB 51723A GB 51723 A GB51723 A GB 51723A GB 207720 A GB207720 A GB 207720A
Authority
GB
United Kingdom
Prior art keywords
valve
transformer
coupled
plate circuit
coil
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
GB51723A
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 GB51723A priority Critical patent/GB207720A/en
Publication of GB207720A publication Critical patent/GB207720A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

207,720. Diggle, W. Jan. 6, 1923. Thermionic amplifiers and detectors. - An unloaded aerial G is connected directly to the grid and filament of a high-frequency amplifier or detector valve, the tuning of the system being effected by means of the intervalve transformer. A main tuning condenser D and a vernier condenser D<1> are shunted across the primary B' of the transformer B, whilst similar condensers D<2>, D<3> tune the secondary coil B<2>. The output from the second valve A' is back-coupled at B<3> to the transformer winding. Additional inductances b' - - b<6> may take the place of the transformer as shown in Fig. 2 alternate coils being left opencircuited, or earthed as indicated in dotted lines. This arrangement is stated to eliminate atmospheric disturbances and to enhance selectivity. In a modified arrangement the first valve has a tuned plate circuit, the inductance coil of which is coupled to a resistance coil in the plate circuit of the second valve.
GB51723A 1923-01-06 1923-01-06 Improvements in wireless receiving circuits Expired GB207720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB51723A GB207720A (en) 1923-01-06 1923-01-06 Improvements in wireless receiving circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51723A GB207720A (en) 1923-01-06 1923-01-06 Improvements in wireless receiving circuits

Publications (1)

Publication Number Publication Date
GB207720A true GB207720A (en) 1923-12-06

Family

ID=9705746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51723A Expired GB207720A (en) 1923-01-06 1923-01-06 Improvements in wireless receiving circuits

Country Status (1)

Country Link
GB (1) GB207720A (en)

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