US1778058A - Amplifying system - Google Patents

Amplifying system Download PDF

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Publication number
US1778058A
US1778058A US69201A US6920125A US1778058A US 1778058 A US1778058 A US 1778058A US 69201 A US69201 A US 69201A US 6920125 A US6920125 A US 6920125A US 1778058 A US1778058 A US 1778058A
Authority
US
United States
Prior art keywords
cathode
current
anode
winding
voltage
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
US69201A
Other languages
English (en)
Inventor
Frederick C Barton
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 BE338048D priority Critical patent/BE338048A/fr
Application filed by General Electric Co filed Critical General Electric Co
Priority to US69201A priority patent/US1778058A/en
Priority to DEI27719D priority patent/DE467279C/de
Priority to GB22862/26A priority patent/GB261343A/en
Priority to FR32724D priority patent/FR32724E/fr
Priority to FR33155D priority patent/FR33155E/fr
Priority to FR33447D priority patent/FR33447E/fr
Priority to FR33996D priority patent/FR33996E/fr
Priority to FR34843D priority patent/FR34843E/fr
Priority to FR35579D priority patent/FR35579E/fr
Priority to FR35761D priority patent/FR35761E/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
Application granted granted Critical
Publication of US1778058A publication Critical patent/US1778058A/en
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

  • invention relates to apparatus for amplifying voltage impulsesand applying them to a sound reproducing device such as a loud speaker, and has for its principal object the provision of an-improved amplifying system that may be operated by alternating current supplied from a house lighting circuit or the like.
  • Fig. 1 shows an i amplifying apparatus whereinmy invention has been embodied
  • Fig. 2 is a perspective view of the. device utilized to regulate the plate voltage of the amplifiers.
  • Fig; 1 shows a transformer 1 comprising a ;primary winding 2- adapted to be connected toasuitable source through contacts 3 and 4 and leads 5 and 6, a secondarywinding 7 for transmitting'current to amplifying tubes 8 and 9 and to the fieldwinding 10 of a sound reproducingdevice 11, a secondary winding 1.12 for supplying heating current to the cathodes'of thermionic rectifiers13 and 14 50 through whichcurrent is supplied to the sistors 23 and 24, and the field winding 10 is connected between the cathode 19 and anode 25 of tube 8 through the primary circuit 26 of a transformer 27.
  • a condenser 28 connected in shunt to the resistor 22 is provided forshunting high frequency currents past the resistor.
  • Contacts 29 and 30 are provided for connecting a voltage regulating device to the load or anode circuit of the tube 8.
  • the tube 9 is provided with a grid 31 which is connected to the cathode 16 through the secondary circuit 32 of transformer 27 and a negative bias resistor 33 shunted by a condenser 34 and with an anode 35 which is connected to the cathode 16 through windings 10 and 12, rectifiers 13 and 1a, winding 7, resistors 20, 23 and 33 and winding 15. Smoothing means shown as condensers 36 and 37 are connected in shunt to the field winding 10.
  • a glow tube or other suitable vol regulating means is provided with contacts 21) and 30 for connecting the electrodes and 4:0 througn contacts 29 and 30 to the terminals of res s or and with short circuited contacts 3 and a for completing the primary circuit of the t sfornier 1 through a ballast lamp
  • this arrai ment of contacts has the advantage that i is impossible to energizethe am lifying apparatus without at the same time ail'on'ling it protection against excessive voltage.
  • the contacts 3 and 30 are made somewhat larger than the contacts 4- and 29 so that incorrect insertion of the glow tube in the receptacle is impossible.
  • heating current is supplied to the cathode 19 from the main secondary circuit 7 of the transformer 1, the magnitude of this current being dependent on the potential drop'produced in resistor 23 by current supplied to the exciting winding 10.
  • This current is substantially constant due to the smoothing eiiect oi condensers 36 and 37 and the exciting winding 10 which acts f as a smoothing inductance.
  • the reproducing device 11 also comprises an operating coil 41 that is interposed between the poles 4 2 and 13 of a core member tl and is connected to the anode or load circuit of tube 9 through a transformer 46.
  • sound reproducing device 11 is of the type wherein a diaphragin is operated by means of the operating 0011 all which is located in the strong magnetic field produced by the field coil 10. For convenience of illustration the diaphragm and other details of the device have been omitted.
  • Variation in the current transmitted through the tube 8 is determined by the voltage impulses applied to the grid 18 through leads 17 and these variations in current produced in the anode circuit of tube 8 are uti-.'
  • a sound producing device including a winding
  • a thermionic amplifier comprising a grid'tor controlling the transmission of current between its cathode and anode, means connected between said cathode and anode for transmitting voltage impulses to said winding, voltage regulating means adapted to be connected between said cathode and anode, current-supply means, and means operable to prevent the connection of said current supply means to said amplifier before said regulating means is connected thereto.
  • a sound producing device including a winding
  • a thermionic amplifier including a grid interposed between a cathode and anode, means connected between said cathode and grid fortransmitting voltage impulses to said grid, a source of current,
  • impedance means connected to said source in series with said winding for diverting heating current through said cathode and for diverting current through a circuit comprising said cathode and anode, and means connected between said-cathode and; anode for supplying impulses to said windin 1.
  • a sound reproducing device comprising a winding, a thermionic amplifier conprising a grid" for controlling the transmission of current through its output circuit, means for transmitting voltage'impulses to said grid, means'comprising a transformer, a rectifier andan impedance device connectedm said output clrcuit, voltage regulating means adapted to be'conne'cted to said impedance device for regulating the voltage applied to said output circuit through said transformer and rectifier, and means opergrid for controlling the transmission of cur-V able to prevent closure of the primary circuit of said transformer until said regulating means is connected to said impedance device.
  • a sound producing device comprising a Winding, a plurality of thermionic amplifiers each provided With'a rent between its cathode and anode, means for transmitting voltage impulses to the grid of one of said amplifiers, means interconnecting thecathode and anode of said amplifier for applying amplified impulses to the grid of another of said amplifiers, means comprising alternating current supply means and a rectifier connected between the cathode and anode of said second mentioned amplifier for applying amplified impulses to said winding, means for transmitting rectified current from said current supply means for heating the cathode of said first mentioned amplifier, and

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Pinball Game Machines (AREA)
US69201A 1925-03-03 1925-11-14 Amplifying system Expired - Lifetime US1778058A (en)

Priority Applications (23)

Application Number Priority Date Filing Date Title
BE338048D BE338048A (enrdf_load_stackoverflow) 1925-03-03
US69201A US1778058A (en) 1925-11-14 1925-11-14 Amplifying system
DEI27719D DE467279C (de) 1925-11-14 1926-03-21 Roehrenschutzschaltung fuer einen Lautsprecher in Verbindung mit Kathodenroehrenverstaerkern
GB22862/26A GB261343A (enrdf_load_stackoverflow) 1925-11-14 1926-09-16
FR32724D FR32724E (fr) 1925-03-03 1926-11-04 Perfectionnements aux systèmes amplificateurs
FR33155D FR33155E (fr) 1925-03-03 1927-02-04 Perfectionnements aux systèmes amplificateurs
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
FR35579D FR35579E (fr) 1925-03-03 1928-06-01 Perfectionnements aux systèmes amplificateurs
FR35761D FR35761E (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
US69201A US1778058A (en) 1925-11-14 1925-11-14 Amplifying system

Publications (1)

Publication Number Publication Date
US1778058A true US1778058A (en) 1930-10-14

Family

ID=22087387

Family Applications (1)

Application Number Title Priority Date Filing Date
US69201A Expired - Lifetime US1778058A (en) 1925-03-03 1925-11-14 Amplifying system

Country Status (3)

Country Link
US (1) US1778058A (enrdf_load_stackoverflow)
DE (1) DE467279C (enrdf_load_stackoverflow)
GB (1) GB261343A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662188A (en) * 1950-03-11 1953-12-08 Texas Co Voltage stabilizing amplifier system for neutron detectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662188A (en) * 1950-03-11 1953-12-08 Texas Co Voltage stabilizing amplifier system for neutron detectors

Also Published As

Publication number Publication date
DE467279C (de) 1928-10-22
GB261343A (enrdf_load_stackoverflow) 1927-05-26

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