Voltage - Triode (with diode, heptode or hexode) ·Diode-Diode-Triode
6R7GT
Compact GT-envelope double-diode medium-mu triode for detector and amplifier service. Paired diodes provide signal and control rectification while the relatively low-resistance triode supplies useful current drive.
- Sections
- 3
- Base
- -
- Socket code
- IO
- Base pins
- 8
- Nominal heater
- 6.3 V / 300 mA
Description
Duplex tube consisting of a medium-mu triode and two diode units for detector and amplifier service.
Socket description
International Octal
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- IO
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 300 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
3 physical sections, each with unique specifications.
Section 1
Triode
- Plate resistance
- 8500 Ω
- Transconductance
- 0.0019 S
- Max plate voltage
- 250 V
Published ratings and characteristics promoted where clearly legible in the approved source.
Section 2
Diode
No fixed ratings are recorded for this section.
Published ratings and characteristics promoted where clearly legible in the approved source.
Section 3
Diode
No fixed ratings are recorded for this section.
Physical diode section added during approved section-structure reconciliation.
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.