Classifications

• • C—CHEMISTRY; METALLURGY
  • C30—CRYSTAL GROWTH
  • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
  • C30B9/00—Single-crystal growth from melt solutions using molten solvents
  • C30B9/04—Single-crystal growth from melt solutions using molten solvents by cooling of the solution
  • C30B9/08—Single-crystal growth from melt solutions using molten solvents by cooling of the solution using other solvents
  • C30B9/12—Salt solvents, e.g. flux growth
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03F—AMPLIFIERS
  • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
  • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
  • H03F1/347—Negative-feedback-circuit arrangements with or without positive feedback using transformers
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03G—CONTROL OF AMPLIFICATION
  • H03G1/00—Details of arrangements for controlling amplification
  • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
  • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
  • H03G1/0076—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using galvanomagnetic elements
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03G—CONTROL OF AMPLIFICATION
  • H03G3/00—Gain control in amplifiers or frequency changers
  • H03G3/02—Manually-operated control
  • H03G3/04—Manually-operated control in untuned amplifiers
  • H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
  • H03G3/12—Manually-operated control in untuned amplifiers having semiconductor devices incorporating negative feedback
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03G—CONTROL OF AMPLIFICATION
  • H03G7/00—Volume compression or expansion in amplifiers
  • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Crystallography & Structural Chemistry (AREA)
• Materials Engineering (AREA)
• Metallurgy (AREA)
• Organic Chemistry (AREA)
• Power Engineering (AREA)
• Amplifiers (AREA)
• Control Of Amplification And Gain Control (AREA)
• Feed For Specific Animals (AREA)
• Fodder In General (AREA)
• Plural Heterocyclic Compounds (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=25998616

Family Applications (1)

Country Status (6)

Family Cites Families (1)

• 1966
  • 1966-09-23 DE DE1966S0106079 patent/DE1275138B/de not_active Withdrawn
• 1967
  • 1967-08-30 NL NL6711937A patent/NL146347B/xx unknown
  • 1967-09-21 CH CH1322867A patent/CH470824A/de not_active IP Right Cessation
  • 1967-09-22 GB GB4314767A patent/GB1137194A/en not_active Expired
  • 1967-09-22 SE SE1305267A patent/SE344145B/xx unknown
  • 1967-09-22 JP JP6057967A patent/JPS5715487B1/ja active Pending
  • 1967-09-22 JP JP6107667A patent/JPS5433105B1/ja active Pending

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