Tube-number record
TCL4
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TCL4 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Tungsram, construction Pentode, socket Side-contact (P-base), maximum plate voltage 400 V, and maximum plate dissipation 9 W. The archive does not yet hold a photographed example of this type.
BrandTungsram
ClassPentode
BaseSide-contact (P-base)
Filament35 V @ 0.2 mA
Construction
Primary TypePentode
EnvelopeDomkolben
SectionsSingle
Filament / Heater
Heater NotesAllstrom (Universal AC/DC)
Absolute Maximum Ratings
Plate Voltage400 V
Plate Dissipation9 W
Grid 2 Voltage400 V
Grid 1 Voltage-13 V
Cathode Current70 mA
Audio Performance
Typical THD10%
Power Output4 W
Key Features
- Allstrom
- Hochsteilpenthode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 200 V | 8000 | 43000 | — | 45 mA |
Application Notes
Normaler Schaltung mit Erzeugung der Gittervorspannung im Kathodenkreis.
Datasheets
Datasheet: TCL4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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