GB835307A - Improvements in and relating to variable electrical attenuators - Google Patents

Improvements in and relating to variable electrical attenuators

Info

Publication number
GB835307A
GB835307A GB1697357A GB1697357A GB835307A GB 835307 A GB835307 A GB 835307A GB 1697357 A GB1697357 A GB 1697357A GB 1697357 A GB1697357 A GB 1697357A GB 835307 A GB835307 A GB 835307A
Authority
GB
United Kingdom
Prior art keywords
bridge
diagonal
relating
variable electrical
control signal
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
GB1697357A
Inventor
George William Dilworth
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.)
British Broadcasting Corp
Original Assignee
British Broadcasting 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 British Broadcasting Corp filed Critical British Broadcasting Corp
Priority to GB1697357A priority Critical patent/GB835307A/en
Publication of GB835307A publication Critical patent/GB835307A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/02—Remote control of amplification, tone, or bandwidth

Abstract

835,307. Automatic volume control. BRITISH BROADCASTING CORPORATION. May 28, 1958 [May 28, 1957], No. 16973/57. Class 40 (4). A signal is applied across one diagonal and is taken from across the other diagonal of a bridge R the balance of which is controlled by a bridge M of non-linear resistors one diagonal of which shunts an arm of bridge R and the other diagonal of which is subject to a control signal. Use of the bridge M prevents the control signal appearing in the bridge R and prevents voltage fed back from the bridge R altering the impedance shunt. The output from bridge R is applied between the high-resistance cathode and grid connections of amplifier V.
GB1697357A 1957-05-28 1957-05-28 Improvements in and relating to variable electrical attenuators Expired GB835307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1697357A GB835307A (en) 1957-05-28 1957-05-28 Improvements in and relating to variable electrical attenuators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1697357A GB835307A (en) 1957-05-28 1957-05-28 Improvements in and relating to variable electrical attenuators

Publications (1)

Publication Number Publication Date
GB835307A true GB835307A (en) 1960-05-18

Family

ID=10086944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1697357A Expired GB835307A (en) 1957-05-28 1957-05-28 Improvements in and relating to variable electrical attenuators

Country Status (1)

Country Link
GB (1) GB835307A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311840A (en) * 1964-05-27 1967-03-28 Rolf S Gillard Bridge type circuit for controlling the gain of a transistor amplifier
DE1297155B (en) * 1966-07-20 1969-06-12 Siemens Ag Contactless controllable damping element
US3533006A (en) * 1968-11-04 1970-10-06 Collins Radio Co Infinite range electronics gain control circuit
US3582807A (en) * 1969-07-28 1971-06-01 Tektronix Inc Amplifier gain control circuit including diode bridge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311840A (en) * 1964-05-27 1967-03-28 Rolf S Gillard Bridge type circuit for controlling the gain of a transistor amplifier
DE1297155B (en) * 1966-07-20 1969-06-12 Siemens Ag Contactless controllable damping element
US3533006A (en) * 1968-11-04 1970-10-06 Collins Radio Co Infinite range electronics gain control circuit
US3582807A (en) * 1969-07-28 1971-06-01 Tektronix Inc Amplifier gain control circuit including diode bridge

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