GB593187A - Improvements in thermionic valve frequency multipliers - Google Patents

Improvements in thermionic valve frequency multipliers

Info

Publication number
GB593187A
GB593187A GB17230/44A GB1723044A GB593187A GB 593187 A GB593187 A GB 593187A GB 17230/44 A GB17230/44 A GB 17230/44A GB 1723044 A GB1723044 A GB 1723044A GB 593187 A GB593187 A GB 593187A
Authority
GB
United Kingdom
Prior art keywords
circuit
frequency
harmonic
tuned
input
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
GB17230/44A
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.)
STC PLC
Original Assignee
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB593187A publication Critical patent/GB593187A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/06—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes
    • H03B19/08—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a discharge device
    • H03B19/10—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a discharge device using multiplication only

Landscapes

  • Supply And Distribution Of Alternating Current (AREA)

Abstract

593,187. Valve circuits for frequency multiplying. STANDARD TELEPHONES & CABLES, Ltd. Sept. 8, 1944, No. 17230. Convention date, July 14, 1942.. [Class 40 (v)] A thermionic frequency multiplier, in which the output circuit is tuned to an harmonic of the input frequency, has an input circuit consisting of two parts, the first being tuned to the input frequency and the second to the harmonic so as to form a low impedance shunt path across the first part at the harmonic frequency and avoid the effects of feedback through the valve. In Fig. 1, valve 10 has input circuit 11 consisting of parallel tuned circuit 14 resonant at input frequency and series tuned circuit 17, 18 resonant at the desired harmonic. Anode circuit 12 is tuned to some harmonic and feedback through the valve escapes to earth through low impedance path 17, 18. In a modification, a push-pull circuit is used, Fig. 2 (not shown). In Fig. 3, resonant lines 54, 55 constitute the input circuit whose frequency depends on length X. Condenser 56, adjusted a distance Y along the resonant lines, constitutes, in conjunction with stray capacities, the series tuned circuit offering a low impedance shunt path at the chosen harmonic frequency.
GB17230/44A 1942-07-14 1944-09-08 Improvements in thermionic valve frequency multipliers Expired GB593187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US593187XA 1942-07-14 1942-07-14

Publications (1)

Publication Number Publication Date
GB593187A true GB593187A (en) 1947-10-10

Family

ID=22022219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17230/44A Expired GB593187A (en) 1942-07-14 1944-09-08 Improvements in thermionic valve frequency multipliers

Country Status (1)

Country Link
GB (1) GB593187A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943892C (en) * 1953-01-14 1956-06-01 Siemens Ag Resettable multiplier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943892C (en) * 1953-01-14 1956-06-01 Siemens Ag Resettable multiplier

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