Voltage - Dual Triode (similar) ·Triode-Triode
13D2
Twin triode developed for amplifier and signal-processing service in series-heater equipment, providing two triode units within a compact receiving-tube envelope.
- Sections
- 2
- Base
- -
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 600 mA
Description
The BRIMAR 13D2 is a double triode whose source states characteristics precisely similar to 6SN7GT.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
- Plate resistance
- 7700 Ω
- Transconductance
- 0.0026 S
- Amplification factor
- 20
Representative of two identical sections; 6SN7GT-equivalent characteristics.
Section 2
Triode
- Plate resistance
- 7700 Ω
- Transconductance
- 0.0026 S
- Amplification factor
- 20
Second identical physical triode section; added to align rows with SectionCount.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.