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30C17

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BrandEdiswan Mazda
ClassV.H.F. Triode Pentode Frequency Changer
BaseNoval (B9A)
Filament7.4V @ 300mA

Construction

Primary TypeTriode Pentode
EnvelopeGlass
SectionsTriode, Pentode

Filament / Heater

Heater NotesIndirectly heated—for series operation

Absolute Maximum Ratings

Plate Voltage250 V
Plate Dissipation1.7 W
Grid 2 Voltage230 V
Cathode Current18 mA
H-C Voltage200 V

Audio Performance

Key Features
  • Frame Grid construction
  • Variable-mu characteristic pentode section
  • Gain controlled from A.G.C. line
  • Basing identical to 30C15

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode100V8500-2015mA
Pentode (Frequency Changer at 200 Mc/s)170V4900--6.4mA

Application Notes

Intended for use in television tuners. Can be used in place of 30C15 in existing tuners for a gain increase of 3.5 to 4.0 dB on Bands I and III.

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