US1896534A - Electrical system - Google Patents

Electrical system Download PDF

Info

Publication number
US1896534A
US1896534A US191254A US19125427A US1896534A US 1896534 A US1896534 A US 1896534A US 191254 A US191254 A US 191254A US 19125427 A US19125427 A US 19125427A US 1896534 A US1896534 A US 1896534A
Authority
US
United States
Prior art keywords
cathode
grid
anode
input
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 - Lifetime
Application number
US191254A
Other languages
English (en)
Inventor
Ernst F W Alexanderson
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US191254A priority Critical patent/US1896534A/en
Priority to DEI34248D priority patent/DE518652C/de
Priority to FR653803D priority patent/FR653803A/fr
Priority to GB14031/28A priority patent/GB290302A/en
Application granted granted Critical
Publication of US1896534A publication Critical patent/US1896534A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only

Definitions

  • My invention relates comprising a space discharge dev1ce wh ch is provided with input and output circu ts, and has for its principal object the prov1s1on '5 of an improved apparatus and method of and feed-back due i operation whereby the tendency of the output circuit to feed energy back into the lnput circuit is greatly reduced.
  • Fig. 1 illustrates a transmitting apparatus wherein my invention has been embodied
  • Fig. 2 illustrates the application of my invention to a receiving apparatus
  • Fig. 3 illustrates a 0 modified form of transmitter.
  • the transmitting apparatus illustrated by Fig. 1 comprises a high frequency generator 1 which may have its output modulated by any suitable means and is connected to an 5 antenna 2 through means comprising an input transformer 3, a space discharge device an output transformer 5 and a source 6 for supplying'the anode current of the device Heating current is supplied to the cath- 0 ode of he device 4 from a source 7 through a to electrical systems transformer 8 and a bi-filar secondary winding 9 of the input transformer 3.
  • High frequency shunts shown as condensers l0 and 11, are respectively connected between the secondary terminals of the cathode heating transformer 8 and between the terminals of the source 6.
  • Tuning of the output circuit is effected by means of a capacity 12 which is connected between the grid and anode of the device 4. With these connections, the grounded grid acts as a shield between the input and output circuits thereby preventing any capacity coupling between the cathode and anode and avoiding feed-back between the input and output circuits of the device 4.
  • the receiving apparatusof Fig. 2 comprises an antenna 13 and a telephone 14 which are interconnected through means comprising transformers 15 and amplifiers 16, a transformer 17 and a detector 18, heating current being supplied to the cathodes of the with regard to Fig. 1.
  • the system shown by Fig. 3 comprises a space discharge device 21 which is provided with an input circuit including a two-wire transformer winding 22, a cathode 24, a grid 25 and a grid leak device put circuit including the cathode24, an anode 27, a direct current source 28, a transformer winding 29, a two-wire circuit 30 and the twowire winding 22.
  • Heating current is supplied from a source 31 to the cathode 24 through the winding 22, the circuit 27 and the winding 29 which is inductively related to a primary winding 32 connected to the source 31.
  • the output circuit of the device 21 is coupled to an antenna 33 through a single turn loop 34, and that condensers 35, 36 and 37 are arranged to shunt the high frequency currents past the sources 28 and 31.
  • the otentiai of the cathode 24 is varied in accor ance with the im ulses to be amplified and there is little, i any, energy fed from the output circuit through the capacity between the grid and anode into the input circuit.
  • a source of heating current connected to said cathode through said bir

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electrostatic Separation (AREA)
  • Amplifiers (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
US191254A 1927-05-13 1927-05-13 Electrical system Expired - Lifetime US1896534A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US191254A US1896534A (en) 1927-05-13 1927-05-13 Electrical system
DEI34248D DE518652C (de) 1927-05-13 1928-04-29 Anordnung fuer Elektronenroehren
FR653803D FR653803A (fr) 1927-05-13 1928-05-03 Perfectionnements aux moyens d'éviter les effets de rétroaction dans les montages comprenant des tubes à vide
GB14031/28A GB290302A (en(2012)) 1927-05-13 1928-05-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US191254A US1896534A (en) 1927-05-13 1927-05-13 Electrical system

Publications (1)

Publication Number Publication Date
US1896534A true US1896534A (en) 1933-02-07

Family

ID=22704736

Family Applications (1)

Application Number Title Priority Date Filing Date
US191254A Expired - Lifetime US1896534A (en) 1927-05-13 1927-05-13 Electrical system

Country Status (4)

Country Link
US (1) US1896534A (en(2012))
DE (1) DE518652C (en(2012))
FR (1) FR653803A (en(2012))
GB (1) GB290302A (en(2012))

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445933A (en) * 1945-01-23 1948-07-27 Du Mont Allen B Lab Inc Controlled blocking tube oscillator
US2524821A (en) * 1943-12-28 1950-10-10 Int Standard Electric Corp Wide frequency band amplifier
US2799805A (en) * 1953-07-20 1957-07-16 Arf Products Symmetrical bridge for reducing hum in vacuum tubes
US3649735A (en) * 1955-08-17 1972-03-14 Us Navy Transmission system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE428005A (en(2012)) * 1937-05-11
US4471316A (en) * 1981-02-10 1984-09-11 Pass Matvei I Electric oscillation generator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524821A (en) * 1943-12-28 1950-10-10 Int Standard Electric Corp Wide frequency band amplifier
US2445933A (en) * 1945-01-23 1948-07-27 Du Mont Allen B Lab Inc Controlled blocking tube oscillator
US2799805A (en) * 1953-07-20 1957-07-16 Arf Products Symmetrical bridge for reducing hum in vacuum tubes
US3649735A (en) * 1955-08-17 1972-03-14 Us Navy Transmission system

Also Published As

Publication number Publication date
DE518652C (de) 1931-02-18
FR653803A (fr) 1929-03-28
GB290302A (en(2012)) 1928-08-16

Similar Documents

Publication Publication Date Title
US1896534A (en) Electrical system
US1985353A (en) Reduction of disturbing voltages in electric circuits
US2130441A (en) Power supply system
US1530649A (en) Electric circuits
US1655270A (en) Electron-discharge apparatus
US2314132A (en) High frequency amplifier
US1872274A (en) Thermionic tube
US1856665A (en) Power supply system
US1695966A (en) Radio system
US1796071A (en) High-frequency repeater
US2253189A (en) Transmission device
US1329283A (en) Thermionic amplifier
US1580427A (en) Circuit for audions
US1448550A (en) Thermionic amplifier circuits
US1956964A (en) Connection for the operation of high frequency amplification systems
US1485156A (en) System of distribution
US2353429A (en) Vibrator power supply for radio receivers
US1658346A (en) Amplifier circuits
US1686018A (en) Vacuum-tube circuits
US1756132A (en) High-frequency-oscillation generator
US1137315A (en) System for the transmission of intelligence.
US1530685A (en) Repeater circuits
US1813775A (en) Means for preventing retroactive effects in audion amplifier circuits
US1662966A (en) Substation circuit
US2078666A (en) Thermionic device