CH225466A - Circuit arrangement for simultaneous automatic bass boosting and cutting of the upper frequencies in the low frequency section of radio receivers. - Google Patents

Circuit arrangement for simultaneous automatic bass boosting and cutting of the upper frequencies in the low frequency section of radio receivers.

Info

Publication number
CH225466A
CH225466A CH225466DA CH225466A CH 225466 A CH225466 A CH 225466A CH 225466D A CH225466D A CH 225466DA CH 225466 A CH225466 A CH 225466A
Authority
CH
Switzerland
Prior art keywords
cutting
low frequency
circuit arrangement
frequency section
radio receivers
Prior art date
Application number
Other languages
German (de)
Inventor
Schaub Apparatebaugesellscha G
Original Assignee
Phrix Arbeitsgemeinschaft
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 Phrix Arbeitsgemeinschaft filed Critical Phrix Arbeitsgemeinschaft
Publication of CH225466A publication Critical patent/CH225466A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/06—Manually-operated control in untuned amplifiers having discharge tubes
    • H03G5/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/04—Preparatory processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Polyamides (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH225466D 1940-10-29 1941-09-26 Circuit arrangement for simultaneous automatic bass boosting and cutting of the upper frequencies in the low frequency section of radio receivers. CH225466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE291040X 1940-10-29

Publications (1)

Publication Number Publication Date
CH225466A true CH225466A (en) 1943-01-31

Family

ID=6065603

Family Applications (2)

Application Number Title Priority Date Filing Date
CH225373D CH225373A (en) 1940-10-29 1941-06-18 Process for the production of artificial structures.
CH225466D CH225466A (en) 1940-10-29 1941-09-26 Circuit arrangement for simultaneous automatic bass boosting and cutting of the upper frequencies in the low frequency section of radio receivers.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH225373D CH225373A (en) 1940-10-29 1941-06-18 Process for the production of artificial structures.

Country Status (4)

Country Link
BE (1) BE442169A (en)
CH (2) CH225373A (en)
FR (1) FR879430A (en)
NL (1) NL57210C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1030022B (en) * 1953-02-24 1958-05-14 Gen Aniline & Film Corp Process for the production of high molecular weight polymerisation products

Also Published As

Publication number Publication date
BE442169A (en) 1941-08-30
CH225373A (en) 1943-01-31
NL57210C (en) 1946-08-16
FR879430A (en) 1943-02-23

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