GB605947A - Wide band vacuum-tube amplifiers - Google Patents

Wide band vacuum-tube amplifiers

Info

Publication number
GB605947A
GB605947A GB10865/45A GB1086545A GB605947A GB 605947 A GB605947 A GB 605947A GB 10865/45 A GB10865/45 A GB 10865/45A GB 1086545 A GB1086545 A GB 1086545A GB 605947 A GB605947 A GB 605947A
Authority
GB
United Kingdom
Prior art keywords
mid
shunt
impedance
network
networks
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
GB10865/45A
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.)
Philco Radio and Television Corp
Original Assignee
Philco Radio and Television 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
Application filed by Philco Radio and Television Corp filed Critical Philco Radio and Television Corp
Publication of GB605947A publication Critical patent/GB605947A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0138—Electrical filters or coupling circuits
    • H03H7/0146—Coupling circuits between two tubes, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Microwave Amplifiers (AREA)

Abstract

605,947. Impedance networks. PHILCO RADIO & TELEVISION CORPORATION. April 30, 1945, No. 10865. Convention date, April 28, 1944. [Class 40 (viii)] [Also in Group XL (c)] A constant-impedance two-terminal network with terminals X, X for use as a shunt impedance in an intervalve coupling in a wideband amplifier, Fig. 1 (not shown), comprises a network having a mid-series termination connected in parallel with a network having a mid-shunt termination. The two networks have the same nominal impedance and the same pass-bands, and are reflectionlessly terminated at their further ends. The networks may be of the simple type shown, or they may be of other constant-k or m-derived types, Figs. 6, 7 (not shown). The mid-shunt and mid-series terminations may be completed by high shunt and low series resistances 12, 14, which compensate for extreme values attained by the network impedances at the cut-off frequencies. Capacity inherent in the valve may form part of the mid-shunt termination.
GB10865/45A 1944-04-28 1945-04-30 Wide band vacuum-tube amplifiers Expired GB605947A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US533225A US2398691A (en) 1944-04-28 1944-04-28 Wide band amplifier

Publications (1)

Publication Number Publication Date
GB605947A true GB605947A (en) 1948-08-04

Family

ID=24125034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10865/45A Expired GB605947A (en) 1944-04-28 1945-04-30 Wide band vacuum-tube amplifiers

Country Status (2)

Country Link
US (1) US2398691A (en)
GB (1) GB605947A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2404088A (en) * 2003-06-13 2005-01-19 Sepura Ltd Antenna and amplifier impedance matching

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632051A (en) * 1949-08-30 1953-03-17 Bell Telephone Labor Inc Balancing network for loaded transmission lines
US2802068A (en) * 1953-05-11 1957-08-06 Robert H Harwood System of impedance matching utilizing grounded-grid amplifier termination

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2404088A (en) * 2003-06-13 2005-01-19 Sepura Ltd Antenna and amplifier impedance matching
GB2404088B (en) * 2003-06-13 2005-10-19 Sepura Ltd Amplifier impedance matching

Also Published As

Publication number Publication date
US2398691A (en) 1946-04-16

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