GB287171A - Improvements in and relating to electron tube installations, particularly wireless transmitters - Google Patents

Improvements in and relating to electron tube installations, particularly wireless transmitters

Info

Publication number
GB287171A
GB287171A GB7566/28A GB756628A GB287171A GB 287171 A GB287171 A GB 287171A GB 7566/28 A GB7566/28 A GB 7566/28A GB 756628 A GB756628 A GB 756628A GB 287171 A GB287171 A GB 287171A
Authority
GB
United Kingdom
Prior art keywords
earthed
current
thermionic
source
relating
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
GB7566/28A
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Publication of GB287171A publication Critical patent/GB287171A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
    • B41J11/38—Manually-operated feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/48—Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers, e.g. devices for switching over from handling of copy material in sheet form to handling of copy material in continuous form and vice versa or point-of-sale printers comprising means for printing on continuous copy material, e.g. journal for tills, and on single sheets, e.g. cheques or receipts
    • B41J11/54—Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers, e.g. devices for switching over from handling of copy material in sheet form to handling of copy material in continuous form and vice versa or point-of-sale printers comprising means for printing on continuous copy material, e.g. journal for tills, and on single sheets, e.g. cheques or receipts in which one paper or set is fed towards printing position from the front of the apparatus

Landscapes

  • General Induction Heating (AREA)
  • Amplifiers (AREA)

Abstract

287,171. Lorenz Akt.-Ges., C. March 18, 1927, [Convention date]. Thermionic generators; thermionic modulating systems. - A thermionic-valve wireless transmitter has a direct-current high-voltage source 6, 7 of anode current earthed at a point between the positive and negative poles. The high-frequency circuit is earthed at the cathode through a condenser 8, the source of filament current is protected against direct-current voltage by feeding the filament with alternating current through a transformer 11 having an earthed shield between the windings, and the modulating-device is protected by blocking-condensers 12, 13. The source of high tension may consist of two directcurrent machines in series with the common connection earthed as shown, or a single machine with its central point earthed, or a choke with its central point earthed may be connected across the machine.
GB7566/28A 1927-03-18 1928-03-12 Improvements in and relating to electron tube installations, particularly wireless transmitters Expired GB287171A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE287171X 1927-03-18

Publications (1)

Publication Number Publication Date
GB287171A true GB287171A (en) 1928-06-07

Family

ID=6059248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7566/28A Expired GB287171A (en) 1927-03-18 1928-03-12 Improvements in and relating to electron tube installations, particularly wireless transmitters

Country Status (3)

Country Link
US (1) US1739299A (en)
FR (1) FR652173A (en)
GB (1) GB287171A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230455A (en) * 1962-12-05 1966-01-18 Jr James P Kosta Self-powered pulse radio transmitter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL103747C (en) * 1955-06-03
NL197782A (en) * 1955-06-03

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230455A (en) * 1962-12-05 1966-01-18 Jr James P Kosta Self-powered pulse radio transmitter

Also Published As

Publication number Publication date
US1739299A (en) 1929-12-10
FR652173A (en) 1929-03-05

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