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Tube-number record

41 M.H.L.

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BrandCOSSOR
ClassIndirectly Heated Triode
Filament4 V @ 1000 mA

Construction

Primary TypeTriode
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesIndirectly Heated

Absolute Maximum Ratings

Plate Voltage200 V

Audio Performance

Key Features
  • Low impedance
  • High mutual conductance
  • Indirectly heated
  • Sensitive power grid detector

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Detector or L.F. Amplifier200 V450011500524 mA

Application Notes

Suited for detector positions where preceding amplification requires a low impedance valve. Recommended shunt-fed transformer coupling (30,000 ohms/1 mfd) for power grid detection. Suitable for anode bend detection with resistance-capacity or transformer coupling.

Datasheets

Datasheet: 41MHL.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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