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UY1NS

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BrandTesla
ClassHalf-wave Rectifier
BaseOctal
Filament50V @ 100mA

Construction

Primary TypeHalf-wave rectifier
Rectifier TypeHalf-wave
EnvelopeGlass
Base MaterialBakelite
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated cathode; DC or AC power supply.

Absolute Maximum Ratings

Plate Voltage275 V
Plate Dissipation2.5 W
Cathode Current140 mA
H-C Voltage750 V

Audio Performance

Key Features
  • Indirectly heated
  • Universal receiver tube
  • Bakelite octal base
  • Single-way (half-wave) rectification

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Maximum Supply Voltage275V---140mA

Application Notes

Because the UY1NS has a very low internal resistance, it is necessary to connect a protective resistor in the anode circuit to limit the peak charging current.

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