GB1080132A - Improvements in or relating to magnetic switching arrangements - Google Patents

Improvements in or relating to magnetic switching arrangements

Info

Publication number
GB1080132A
GB1080132A GB206664A GB206664A GB1080132A GB 1080132 A GB1080132 A GB 1080132A GB 206664 A GB206664 A GB 206664A GB 206664 A GB206664 A GB 206664A GB 1080132 A GB1080132 A GB 1080132A
Authority
GB
United Kingdom
Prior art keywords
magnetic
core
polepieces
windings
winding
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
GB206664A
Inventor
Michael Harry Frederick Ranger
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.)
THERMIONIC PRODUCTS Ltd
Original Assignee
THERMIONIC PRODUCTS 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 THERMIONIC PRODUCTS Ltd filed Critical THERMIONIC PRODUCTS Ltd
Priority to GB206664A priority Critical patent/GB1080132A/en
Publication of GB1080132A publication Critical patent/GB1080132A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C21/00—Digital stores in which the information circulates continuously
    • G11C21/005—Digital stores in which the information circulates continuously using electrical delay lines
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4907—Details for scanning
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Magnetic Heads (AREA)

Abstract

1,080,132. Delay lines. THERMIONIC PRODUCTS (ELECTRONICS) Ltd. Jan. 15, 1965 [Jan. 16, 1964], No. 2066/64. Heading H3U. [Also in Division G5] A delay line comprises a number of seriesconnected windings 2 surrounding magnetic cores 1 and capacitors 3 shunting the windings, the cores 1 having a substantially rectangular hysteresis loop. In order to avoid distortion of a stepped voltage function as it travels down the line from the input 5, each capacitor may be shunted by a resistor 6. The line is intended for successively switching the separate magnetic circuits of a multi-channel transducer head as disclosed in Specification 1,020,422, the cores 1 and windings 2 serving as magnetic switches or flux gates. Fig. 4 shows a single magnetic switching circuit comprising polepieces 9, 10 separated by a non-magnetic gap 11 and having interposed therebetween an annular core 12 and winding 13, this core and winding corresponding to a core 1 and winding 2 of Fig. 1. Recording and replay windings 14 and 15 surround the polepieces 9 and 10, the magnetic circuit formed by the polepieces and core 12 normally being interrupted by the magnetic state of the latter. Upon energization of the winding 13 by the switching pulse which passes down the delay line the magnetic state of the core 12 is reversed to permit a momentary flow of flux through the polepieces and rendering operative the recording or play-back function. A multi-channel transducer head is described with reference to Figs. 5, 6 (not shown).
GB206664A 1964-01-16 1964-01-16 Improvements in or relating to magnetic switching arrangements Expired GB1080132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB206664A GB1080132A (en) 1964-01-16 1964-01-16 Improvements in or relating to magnetic switching arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB206664A GB1080132A (en) 1964-01-16 1964-01-16 Improvements in or relating to magnetic switching arrangements

Publications (1)

Publication Number Publication Date
GB1080132A true GB1080132A (en) 1967-08-23

Family

ID=9732992

Family Applications (1)

Application Number Title Priority Date Filing Date
GB206664A Expired GB1080132A (en) 1964-01-16 1964-01-16 Improvements in or relating to magnetic switching arrangements

Country Status (1)

Country Link
GB (1) GB1080132A (en)

Similar Documents

Publication Publication Date Title
US3018419A (en) Regenerative actuator drive circuits
US2901549A (en) Magnetic recording system
GB914171A (en) Magnetic recording cross-talk elimination
US2997599A (en) Signal translating device
GB1494096A (en) Magnetic head electromagnetically switchable between a recording and a playback mode
GB1307861A (en) Magnetic playback apparatus
US3838451A (en) Magnetic tape reproducing system having secondary shorting of a rotary transformer for head switching
US3334192A (en) Cross field magnetic transducer head
GB1172786A (en) Improvements in Coupling Arrangements for the Selective Coupling of a Recording Channel and a Reproducing Channel to a Magnetic Transducer.
GB1080132A (en) Improvements in or relating to magnetic switching arrangements
GB991637A (en) Improvements relating to electromagnetic transducers
GB1143160A (en) Magnetic recording systems
GB966438A (en) Improvements in or relating to magnetic transducing systems
GB841294A (en) Cutting systems for producing grooved sound tracks
GB1070467A (en) Magnetic heads
GB1114977A (en) Magnetic recording and playback system
GB1035284A (en) Improvements in magnetic heads
US2496579A (en) Sensing system for magnetically recorded signals
GB832426A (en) Improved magnetic head
GB1105535A (en) Improvements in or relating to magnetic recording systems
GB1016298A (en) Stereophonic pick-up cartridge
GB1142726A (en) Magnetic transducer
GB1038391A (en) Improvements in or relating to magnetic actuators
GB1001156A (en) Signal routing devices
GB923474A (en) Magnetic recording and playback systems