GB609041A - Improvements in or relating to electrical vacuum tube amplifying systems - Google Patents

Improvements in or relating to electrical vacuum tube amplifying systems

Info

Publication number
GB609041A
GB609041A GB649/46A GB64946A GB609041A GB 609041 A GB609041 A GB 609041A GB 649/46 A GB649/46 A GB 649/46A GB 64946 A GB64946 A GB 64946A GB 609041 A GB609041 A GB 609041A
Authority
GB
United Kingdom
Prior art keywords
valve
valves
point
grid
signal
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
GB649/46A
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.)
PHILCO PRODUCTS Inc
Original Assignee
PHILCO PRODUCTS Inc
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 PHILCO PRODUCTS Inc filed Critical PHILCO PRODUCTS Inc
Publication of GB609041A publication Critical patent/GB609041A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/42—Amplifiers with two or more amplifying elements having their dc paths in series with the load, the control electrode of each element being excited by at least part of the input signal, e.g. so-called totem-pole amplifiers
    • H03F3/44—Amplifiers with two or more amplifying elements having their dc paths in series with the load, the control electrode of each element being excited by at least part of the input signal, e.g. so-called totem-pole amplifiers with tubes only

Abstract

609,041. Valve amplifying circuits. PHILCO PRODUCTS, Inc. Jan. 8, 1946, No. 649. Convention date, Jan. 8, 1945. [Class 40 (vi)] An amplifier for television and other purposes requiring wide band-width and relatively high output voltage comprises a plurality of valves connected in series, anode to cathode. The input signal is applied to the grid of the first valve, the grids of the succeeding valves being connected to a point on the load system at which the signal amplitude is less than that at the corresponding cathode. The Figure shows an amplifier in which the signal is fed to control grid 61 of the first of three similar valves 62, 76 and 89. A point is chosen on section 69, 70 of the load system such that the alternating voltage across 69 is equal to the signal voltage applied to grid 61 and this point is connected to control grid 75 of the second valve 76. In a similar manner, point 85 is selected on the load and connected to the control grid 88 of the third valve 89. The output is taken from the anode of the third valve and ground. The output impedance is thus that of the valves in series and the input impedance that of the first valve only. The total gain is the gain of one stage multiplied by the number of valves. A common H.T. source 70<1> is shown, but in an alternative arrangement, Fig. 1 (not shown), separate H.T. and G.B. sources and separate load impedances are provided for each valve.
GB649/46A 1945-01-08 1946-01-08 Improvements in or relating to electrical vacuum tube amplifying systems Expired GB609041A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US571935A US2474435A (en) 1945-01-08 1945-01-08 Vacuum tube amplifier

Publications (1)

Publication Number Publication Date
GB609041A true GB609041A (en) 1948-09-24

Family

ID=24285665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB649/46A Expired GB609041A (en) 1945-01-08 1946-01-08 Improvements in or relating to electrical vacuum tube amplifying systems

Country Status (2)

Country Link
US (1) US2474435A (en)
GB (1) GB609041A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124762A (en) * 1964-03-10 Cascode amplifier circuits
US2638512A (en) * 1949-09-08 1953-05-12 Carlton E Bessey Direct coupled amplifying system
US2750450A (en) * 1951-04-20 1956-06-12 Rca Corp Series connected totem-triode amplifiers
US2830133A (en) * 1952-04-29 1958-04-08 Gen Electric Phase-inverting translating circuit
US2926307A (en) * 1954-03-22 1960-02-23 Honeywell Regulator Co Series energized cascaded transistor amplifier
US2922115A (en) * 1954-08-16 1960-01-19 Schlumberger Well Surv Corp Signal translating amplifying system
NL91579C (en) * 1955-04-16
US2978595A (en) * 1957-05-02 1961-04-04 Ibm Transistor level shifter
KR101342526B1 (en) * 2009-05-18 2013-12-17 어드밴스드 퓨젼 시스템스 엘엘씨 Cascade voltage amplifier and method of activating a plurality of cascaded electron tube stages

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB349483A (en) * 1930-01-23 1931-05-26 Patrick Henry Improvements in the design of radio and sound reproducing apparatus and the like
US2052986A (en) * 1931-10-22 1936-09-01 Rca Corp Balancing radio system
US2093078A (en) * 1934-07-21 1937-09-14 Bell Telephone Labor Inc Electric space discharge tube system
US2138891A (en) * 1934-09-25 1938-12-06 William H Woodin Jr Electron tube amplification system

Also Published As

Publication number Publication date
US2474435A (en) 1949-06-28

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