GB823292A - Improvements relating to printed circuits - Google Patents

Improvements relating to printed circuits

Info

Publication number
GB823292A
GB823292A GB268757A GB268757A GB823292A GB 823292 A GB823292 A GB 823292A GB 268757 A GB268757 A GB 268757A GB 268757 A GB268757 A GB 268757A GB 823292 A GB823292 A GB 823292A
Authority
GB
United Kingdom
Prior art keywords
inductance
jan
printed circuits
improvements relating
circuit
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
GB268757A
Inventor
Alan Herbert Pratt
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB268757A priority Critical patent/GB823292A/en
Publication of GB823292A publication Critical patent/GB823292A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Amplifiers (AREA)

Abstract

823,292. Inductors. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 27, 1958 [Jan. 25, 1957], No. 2687/57. Class 38 (2). [Also in Group XL (c)] In a printed circuit H.F. amplifier there is provided between the grid circuit inductance L1 and earth a further inductance L, to a tapping point on which the cathode of the valve is returned for A.C. via condenser C3. Regeneration is thereby produced to compensate for circuit losses, and more particularly, those in the inductance L1. The inductance L takes the form of a strip, so tapered that a number of equispaced tapping points P1-P5 can be provided giving equal increments of gain. The arrangement may also be used in a transistor amplifier.
GB268757A 1957-01-25 1957-01-25 Improvements relating to printed circuits Expired GB823292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB268757A GB823292A (en) 1957-01-25 1957-01-25 Improvements relating to printed circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB268757A GB823292A (en) 1957-01-25 1957-01-25 Improvements relating to printed circuits

Publications (1)

Publication Number Publication Date
GB823292A true GB823292A (en) 1959-11-11

Family

ID=9744018

Family Applications (1)

Application Number Title Priority Date Filing Date
GB268757A Expired GB823292A (en) 1957-01-25 1957-01-25 Improvements relating to printed circuits

Country Status (1)

Country Link
GB (1) GB823292A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466564A (en) * 1966-05-11 1969-09-09 Gen Electric Amplifier unit combined with externally mounted components for establishing operating characteristics thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466564A (en) * 1966-05-11 1969-09-09 Gen Electric Amplifier unit combined with externally mounted components for establishing operating characteristics thereof

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