GB536217A - Improvements in or relating to time base circuits - Google Patents

Improvements in or relating to time base circuits

Info

Publication number
GB536217A
GB536217A GB25427/39A GB2542739A GB536217A GB 536217 A GB536217 A GB 536217A GB 25427/39 A GB25427/39 A GB 25427/39A GB 2542739 A GB2542739 A GB 2542739A GB 536217 A GB536217 A GB 536217A
Authority
GB
United Kingdom
Prior art keywords
condenser
resistance
valve
time base
grid
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
GB25427/39A
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.)
PRAFULLA KUMA CHATTERJEA
STC PLC
Original Assignee
PRAFULLA KUMA CHATTERJEA
Standard Telephone and Cables PLC
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 PRAFULLA KUMA CHATTERJEA, Standard Telephone and Cables PLC filed Critical PRAFULLA KUMA CHATTERJEA
Publication of GB536217A publication Critical patent/GB536217A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/86—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements gas-filled tubes or spark-gaps

Landscapes

  • Electron Tubes For Measurement (AREA)
  • Particle Accelerators (AREA)
  • Cold Cathode And The Manufacture (AREA)

Abstract

536,217. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., SHANNON, D. S. B., and CHATTERJEA, P. K. Sept. 8, 1939, No. 25427. [Class 40 (v)] In a time base circuit in which a condenser C1 discharges through a gas valve V1, a high resistance R2 (or resistance chain) is connected in series with the charging impedance R1, the condenser C1 being connected across the whole or part of the resistance R2, the anode-cathode path of the valve being connected across a part of resistance R2, and the grid of the valve being connected to a point on R2 which is negative with respect to the cathode. The resistance chain R2 may include a diode V2, Fig. 2, a grid condenser C3 being arranged as shown. The time constant of C3 and its associated shunt impedances is an integral multiple of the. time constant of the generator, so that a small sawtooth voltage of multiple frequency occurs across the condenser C3. Specification 536,215 is referred to.
GB25427/39A 1946-09-25 1939-09-08 Improvements in or relating to time base circuits Expired GB536217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28626/46A GB617297A (en) 1946-09-25 1946-09-25 Improvements in or relating to time base circuits for cathode ray oscillographs

Publications (1)

Publication Number Publication Date
GB536217A true GB536217A (en) 1941-05-07

Family

ID=10278574

Family Applications (2)

Application Number Title Priority Date Filing Date
GB25427/39A Expired GB536217A (en) 1946-09-25 1939-09-08 Improvements in or relating to time base circuits
GB28626/46A Expired GB617297A (en) 1946-09-25 1946-09-25 Improvements in or relating to time base circuits for cathode ray oscillographs

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB28626/46A Expired GB617297A (en) 1946-09-25 1946-09-25 Improvements in or relating to time base circuits for cathode ray oscillographs

Country Status (4)

Country Link
US (1) US2533251A (en)
ES (1) ES175579A1 (en)
FR (2) FR939355A (en)
GB (2) GB536217A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817043A (en) * 1953-03-03 1957-12-17 Itt Waveform monitor
US3024391A (en) * 1956-01-06 1962-03-06 Collins Radio Co Load protective circuit
US3072856A (en) * 1958-04-15 1963-01-08 Richard N Close Sweep recovery and altitude compensation circuit
US3017573A (en) * 1959-03-02 1962-01-16 Probescope Company Spectrum analyzer
US3105168A (en) * 1960-08-19 1963-09-24 Space Technology Lab Inc Control arrangement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2144779A (en) * 1936-06-20 1939-01-24 Loewe Opta Gmbh Relaxation oscillator with variable frequency
US2350069A (en) * 1942-02-20 1944-05-30 Rca Corp Oscillograph sweep circuit
US2363810A (en) * 1942-02-26 1944-11-28 Rca Corp Blanking amplifier for cathode ray oscillographs

Also Published As

Publication number Publication date
US2533251A (en) 1950-12-12
ES175579A1 (en) 1946-12-01
FR939355A (en) 1948-11-12
GB617297A (en) 1949-02-03
FR58256E (en) 1953-11-18

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