NL150547B - Zelfremmend opwikkeldrijfwerk met worm en wormwiel voor een rolluik of dergelijk verticaal beweegbaar afsluitorgaan. - Google Patents

Zelfremmend opwikkeldrijfwerk met worm en wormwiel voor een rolluik of dergelijk verticaal beweegbaar afsluitorgaan.

Info

Publication number
NL150547B
NL150547B NL737305804A NL150547DA NL150547B NL 150547 B NL150547 B NL 150547B NL 737305804 A NL737305804 A NL 737305804A NL 150547D A NL150547D A NL 150547DA NL 150547 B NL150547 B NL 150547B
Authority
NL
Netherlands
Prior art keywords
worm
gear
self
vertically movable
rolling shutter
Prior art date
Application number
NL737305804A
Other languages
English (en)
Dutch (nl)
Original Assignee
Gfa Antriebstechnik Gmbh
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.)
Publication of NL150547B publication Critical patent/NL150547B/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/06—Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/22—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
NL737305804A 1948-12-22 Zelfremmend opwikkeldrijfwerk met worm en wormwiel voor een rolluik of dergelijk verticaal beweegbaar afsluitorgaan. NL150547B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66741A US2477074A (en) 1948-12-22 1948-12-22 Wide band amplifier coupling circuits

Publications (1)

Publication Number Publication Date
NL150547B true NL150547B (nl)

Family

ID=22071389

Family Applications (2)

Application Number Title Priority Date Filing Date
NL737305804A NL150547B (nl) 1948-12-22 Zelfremmend opwikkeldrijfwerk met worm en wormwiel voor een rolluik of dergelijk verticaal beweegbaar afsluitorgaan.
NL79816D NL79816C (xx) 1948-12-22

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL79816D NL79816C (xx) 1948-12-22

Country Status (6)

Country Link
US (1) US2477074A (xx)
CH (1) CH296850A (xx)
DE (1) DE842502C (xx)
FR (1) FR1002802A (xx)
GB (1) GB677921A (xx)
NL (2) NL79816C (xx)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704791A (en) * 1949-04-29 1955-03-22 Western Electric Co Push-pull amplifier circuit
US2646467A (en) * 1949-07-13 1953-07-21 Frank H Mcintosh Wide band amplifier
US2648727A (en) * 1949-10-04 1953-08-11 Crosley Broadeasting Corp Push-pull wide band amplifier
US2659845A (en) * 1950-02-13 1953-11-17 Wayne Kerr Lab Ltd High-frequency alternating current transformer
US2680218A (en) * 1950-10-26 1954-06-01 Acro Products Company Audio transformer
US2673328A (en) * 1950-11-18 1954-03-23 Weston Electrical Instr Corp Frequency meter
US2802907A (en) * 1951-01-22 1957-08-13 Gen Radio Co Distortionless audio amplifier
US2860192A (en) * 1953-05-01 1958-11-11 Frank H Mcintosh Amplifiers
US2871461A (en) * 1953-11-20 1959-01-27 Texas Co Seismic prospecting
US2898399A (en) * 1954-09-14 1959-08-04 Rca Corp Color television receivers
US2798202A (en) * 1955-02-14 1957-07-02 Electro Engineering Works Push-pull modulating transformer
US2930985A (en) * 1957-05-22 1960-03-29 Burroughs Corp Wide-band amplifier
US2980840A (en) * 1958-08-08 1961-04-18 Levy Lester Wide band, low distortion, high efficiency amplifier
US3316504A (en) * 1964-07-17 1967-04-25 Crosley Broadcasting Corp Circuit for extending bandwidth of a modulated amplifier
US4311977A (en) * 1980-05-29 1982-01-19 Continental Electronics Mfg. Co. Output transformer
US5500632A (en) * 1994-05-11 1996-03-19 Halser, Iii; Joseph G. Wide band audio transformer with multifilar winding
US5917396A (en) * 1997-08-04 1999-06-29 Halser, Iii; Joseph G. Wideband audio output transformer with high frequency balanced winding
FR2962275B1 (fr) 2010-07-02 2012-07-20 Tekcem Recepteur pour transmission multivoie puce-a-puce en champ proche

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1791236A (en) * 1928-05-04 1931-02-03 Radio Frequency Lab Inc Electrical circuit and transformer therefor
US2187782A (en) * 1935-10-15 1940-01-23 Emi Ltd Thermionic tube modulator

Also Published As

Publication number Publication date
CH296850A (fr) 1954-02-28
FR1002802A (fr) 1952-03-11
US2477074A (en) 1949-07-26
NL79816C (xx)
DE842502C (de) 1952-06-26
GB677921A (en) 1952-08-27

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