Tube-number record

TCL4

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BrandTungsram

ClassPentode

BaseSide-contact (P-base)

Filament35 V @ 0.2 mA

Construction

Primary TypePentode

EnvelopeDomkolben

SectionsSingle

Heater NotesAllstrom (Universal AC/DC)

Plate Voltage400 V

Plate Dissipation9 W

Grid 2 Voltage400 V

Grid 1 Voltage-13 V

Cathode Current70 mA

Typical THD10%

Power Output4 W

Key Features

Mode	Plate V	Gm (µmhos)	Rp (Ω)	µ	Plate mA
Pentode	200 V	8000	43000	—	45 mA

Normaler Schaltung mit Erzeugung der Gittervorspannung im Kathodenkreis.

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

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