GB286991A - Improvements in or relating to radio receiving apparatus - Google Patents

Improvements in or relating to radio receiving apparatus

Info

Publication number
GB286991A
GB286991A GB2462627A GB2462627A GB286991A GB 286991 A GB286991 A GB 286991A GB 2462627 A GB2462627 A GB 2462627A GB 2462627 A GB2462627 A GB 2462627A GB 286991 A GB286991 A GB 286991A
Authority
GB
United Kingdom
Prior art keywords
condensers
variometer
variometers
valve
order
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
GB2462627A
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.)
LAUNCELOT EDGAR CURRAH
Cutler Hammer Europe Ltd
Original Assignee
LAUNCELOT EDGAR CURRAH
Igranic Electric Co Ltd
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 LAUNCELOT EDGAR CURRAH, Igranic Electric Co Ltd filed Critical LAUNCELOT EDGAR CURRAH
Priority to GB2462627A priority Critical patent/GB286991A/en
Publication of GB286991A publication Critical patent/GB286991A/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
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements

Landscapes

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

Abstract

286,991. Igranic Electric Co., Ltd., and Currah, L. E. Sept. 19, 1927. Thermionic amplifiers.-In order to preserve stability over a wide range of tuning adjustments, two or more high-frequency stages V1, V2 are coupled together by means of variometers M1, M2 shunted by fixed condensers C1, C2, and the anode voltage is supplied through chokes K1, K2. Variable coupling-condensers C4, C5 are inserted between the anodes and the variometers. The input circuit to the firts valve comprises series condensers C6, C7 providing an intermediate serial connection, and a variometer M3 and fixed condenser C3. In the variometer M1 the centre coil is tapped to the anode of the preceding valve V1, whilst in the case of the variometer M2 the centre coil is connected to the grid of the following valve V3 in order to minimize detector damping. Or the electrode connections may be made to the shunt condensers.
GB2462627A 1927-09-19 1927-09-19 Improvements in or relating to radio receiving apparatus Expired GB286991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2462627A GB286991A (en) 1927-09-19 1927-09-19 Improvements in or relating to radio receiving apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2462627A GB286991A (en) 1927-09-19 1927-09-19 Improvements in or relating to radio receiving apparatus

Publications (1)

Publication Number Publication Date
GB286991A true GB286991A (en) 1928-03-15

Family

ID=10214649

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2462627A Expired GB286991A (en) 1927-09-19 1927-09-19 Improvements in or relating to radio receiving apparatus

Country Status (1)

Country Link
GB (1) GB286991A (en)

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