US1665883A - Power-amplifying system - Google Patents

Power-amplifying system Download PDF

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Publication number
US1665883A
US1665883A US108941A US10894126A US1665883A US 1665883 A US1665883 A US 1665883A US 108941 A US108941 A US 108941A US 10894126 A US10894126 A US 10894126A US 1665883 A US1665883 A US 1665883A
Authority
US
United States
Prior art keywords
circuits
impedance
supply means
cathode
push
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
US108941A
Other languages
English (en)
Inventor
Edward W Kellogg
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
Priority to NL20818D priority Critical patent/NL20818C/xx
Priority to BE342384D priority patent/BE342384A/fr
Application filed by General Electric Co filed Critical General Electric Co
Priority to US108941A priority patent/US1665883A/en
Priority to FR33447D priority patent/FR33447E/fr
Priority to FR33996D priority patent/FR33996E/fr
Priority to FR34843D priority patent/FR34843E/fr
Publication of US1665883A publication Critical patent/US1665883A/en
Application granted granted Critical
Priority to FR35761D priority patent/FR35761E/fr
Priority to FR35579D priority patent/FR35579E/fr
Priority to FR35771D priority patent/FR35771E/fr
Priority to FR36008D priority patent/FR36008E/fr
Priority to FR37327D priority patent/FR37327E/fr
Priority to FR37676D priority patent/FR37676E/fr
Priority to FR37829D priority patent/FR37829E/fr
Priority to FR37830D priority patent/FR37830E/fr
Priority to FR37832D priority patent/FR37832E/fr
Priority to FR37835D priority patent/FR37835E/fr
Priority to FR37837D priority patent/FR37837E/fr
Priority to FR38851D priority patent/FR38851E/fr
Priority to FR38884D priority patent/FR38884E/fr
Priority to FR39679D priority patent/FR39679E/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1607—Supply circuits
    • H04B1/1623—Supply circuits using tubes

Definitions

  • My invention relates to systems for emplifying power, and has for its prlncipal object the provision of'a push-pull amplifylng system which is readlly adjusted to p cause equal voltages to be applied to its two case the arallel connection involves the loss of consi erable power in the resistors, but the parallel connection of the filaments has been used heretofore because the connection of the filaments or cathode heating circuits in series with one another produces unba1- .ance in the volta es applied to the dliferent units of the amp ifier f the usual input and output transformers having'mid-pomt taps are used.
  • Fig. 1 shows an amplifying system wherein my invention has been embodied; and Fig. 2 shows this system provided with-an additional stage of ampl fication.
  • Fig. 1 shows a push-pull amplifier comrising thermionic devices 1 and 2 which iiave their cathode heating and output circuits connected to a direct current supply circuit 3 through an impedance device comprising sections or elements 4 to 7.
  • the thermlonic device 1 comprises a cathode 8 which is connected across the section 5 of the impedance device, an anode 9 which is connected to the positive side of the line 3 through a primary circuit 10 of an output transformer 11 and an adjustable portion of the invention will be better understood.
  • the thermionic device 2 comprises a cathode 15 which is connected across the section 6 of the impedance device, an anode 16 which is connected to the positive side of the line 3 through a primary circuit 17 of the output transformer 11 and an adjustable ortion of the section 4 of the impedance evice, and a grid 18 which is connected to the cathode 15 through a second- I Y ary circuit 19 of the input transformer 14 and section 7 of the impedance device.
  • the currents to be amplified are supplied to a primary circuit 20 of the input transformer 14 and the amplified currents are supplied through a secondary circuit 21 of the output transformer 11 to a translating device 22.
  • this translating dev ce is shown as a sound producing device provided with an operating coil 23 connected to the secondary winding 21 and with a field or choke coil 24 connected to the dircult 3 in series with the impedance device.
  • the field or choke coil 24 of the device 22 may be connected to the impedance device between the adjustable plate taps and the cathodes where the voltage of the circuit 3 is not sufiiciently high to permit of its connection in the manner illustrated.
  • connection of 'the cathodes-across sections of the impedtheir respective taps along the section 4 of the impedance device, and that the connections of the grids 12 and 18 to the section 7 of the impedance device will be so made or adjusted as to ensure that equal bias voltages are applied to the grid circuits.
  • Fig.2 shows an amplifying system'which' differs from that of Fig.1 in that the ourrents to be amplified are supplied to the push-pull amplifier through a transformer 25 and a thermionic amplifier 26 which is operated by current supplied through the impedance device from the circuit 3.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
US108941A 1925-03-03 1926-05-13 Power-amplifying system Expired - Lifetime US1665883A (en)

Priority Applications (20)

Application Number Priority Date Filing Date Title
NL20818D NL20818C (enrdf_load_stackoverflow) 1926-05-13
BE342384D BE342384A (enrdf_load_stackoverflow) 1925-03-03
US108941A US1665883A (en) 1926-05-13 1926-05-13 Power-amplifying system
FR33447D FR33447E (fr) 1925-03-03 1927-05-10 Perfectionnements aux systèmes amplificateurs
FR33996D FR33996E (fr) 1925-03-03 1927-08-17 Perfectionnements aux systèmes amplificateurs
FR34843D FR34843E (enrdf_load_stackoverflow) 1925-03-03 1927-12-31
FR35761D FR35761E (fr) 1925-03-03 1928-06-01 Perfectionnements aux systèmes amplificateurs
FR35579D FR35579E (fr) 1925-03-03 1928-06-01 Perfectionnements aux systèmes amplificateurs
FR35771D FR35771E (fr) 1925-03-03 1928-07-12 Perfectionnements aux systèmes amplificateurs
FR36008D FR36008E (fr) 1925-03-03 1928-10-15 Perfectionnements aux systèmes amplificateurs
FR37327D FR37327E (fr) 1925-03-03 1929-02-11 Perfectionnements aux systèmes amplificateurs
FR37676D FR37676E (fr) 1925-03-03 1929-02-16 Perfectionnements aux systèmes amplificateurs
FR37829D FR37829E (fr) 1925-03-03 1929-04-19 Perfectionnements aux systèmes amplificateurs
FR37830D FR37830E (fr) 1925-03-03 1929-05-08 Perfectionnements aux systèmes amplificateurs
FR37832D FR37832E (fr) 1925-03-03 1929-06-06 Perfectionnements aux systèmes amplificateurs
FR37835D FR37835E (fr) 1925-03-03 1929-08-22 Perfectionnements aux systèmes amplificateurs
FR37837D FR37837E (fr) 1925-03-03 1929-09-24 Perfectionnements aux systèmes amplificateurs
FR38851D FR38851E (fr) 1925-03-03 1929-10-04 Perfectionnements aux systèmes amplificateurs
FR38884D FR38884E (fr) 1925-03-03 1930-07-09 Perfectionnements aux systèmes amplificateurs
FR39679D FR39679E (fr) 1925-03-03 1930-12-12 Perfectionnements aux systèmes amplificateurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US108941A US1665883A (en) 1926-05-13 1926-05-13 Power-amplifying system

Publications (1)

Publication Number Publication Date
US1665883A true US1665883A (en) 1928-04-10

Family

ID=22324936

Family Applications (1)

Application Number Title Priority Date Filing Date
US108941A Expired - Lifetime US1665883A (en) 1925-03-03 1926-05-13 Power-amplifying system

Country Status (2)

Country Link
US (1) US1665883A (enrdf_load_stackoverflow)
NL (1) NL20818C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL20818C (enrdf_load_stackoverflow)

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