Classifications

• • 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
  • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
  • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
  • H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
  • H03D7/10—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between different pairs of electrodes

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Superheterodyne Receivers (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19778842

Family Applications (1)

Country Status (6)

Families Citing this family (3)

• 0
  • NL NL51550D patent/NL51550C/xx active
  • BE BE434401D patent/BE434401A/xx unknown
• 1938
  • 1938-12-16 US US246086A patent/US2200498A/en not_active Expired - Lifetime
• 1939
  • 1939-05-15 CH CH211391D patent/CH211391A/de unknown
  • 1939-05-16 DE DEN43250D patent/DE723507C/de not_active Expired
  • 1939-05-16 FR FR854791D patent/FR854791A/fr not_active Expired

Also Published As

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