Tube-number record
6CS7 / 8CS7
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BrandSYLVANIA
ClassReceiving Tube
BaseNoval (B9A)
Filament6.3 V @ 600 mA
Construction
Primary TypeDual triode
EnvelopeT6 1/2
SectionsDissimilar Sections
Filament / Heater
Warm-up Time11s
Heater NotesControlled heater warm-up time for series string operation.
Absolute Maximum Ratings
Plate Voltage500 V
Plate Dissipation6.5 W
Grid 1 Voltage-400 V
Cathode Current30 mA
H-C Voltage200 V
Audio Performance
Key Features
- Dissimilar sections
- Vertical deflection oscillator
- Vertical deflection amplifier
- Controlled heater warm-up
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Section 1 (Oscillator) | 250 V | 2200 | 7700 | 17 | 10.5 mA |
| Section 2 (Amplifier) | 250 V | 4500 | 3450 | 15.5 | 19 mA |
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