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SV572-3

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BrandSvetlana
ClassAudio Power Triode
BaseSK4A

Construction

Primary TypeTriode
EnvelopeHard glass
Base MaterialCeramic
SectionsSingle

Filament / Heater

MaterialThoriated-tungsten

Absolute Maximum Ratings

Plate Voltage1000 V
Plate Dissipation125 W
Cathode Current210 mA

Audio Performance

Typical THD0.3%
Power Output41.6 W
Key Features
  • Directly heated thoriated tungsten filament
  • Hard glass envelope
  • White ceramic base
  • Graphite plate with titanium coating
  • Low microphonic construction

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1500V180019003.580mA
Class A1900V180019003.5100mA
Class A2900V180019003.5100mA
Push-Pull Class AB1900V---220mA

Application Notes

The SV572-3 has a plate dissipation of 125 watts maximum, making it useful in applications where a 100-watt triode (211 or 845) would normally be used.

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