Voltage Pentode or Tetrode (with diode) ·Diode-Diode-Pentode
6B7E
Receiving tube combining radio signal detection or control-voltage rectification with associated voltage amplification. Its detector function is integral to receiver signal processing and supports classification within the radio detector/converter family.
- Sections
- 3
- Base
- -
- Socket code
- IO
- Base pins
- -
- Nominal heater
- 6.3 V / 300 mA
Description
The BRIMAR 6B7E is a double-diode pentode with a 6.3 V, 0.3 A heater; the source explicitly refers to type 6B8G for further information.
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
- -
- 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
Diode
No fixed ratings are recorded for this section.
First physical diode of Brimar 6B7E double-diode pentode, for radio detection and AVC/control-voltage rectification. Brimar explicitly identifies two diode sections and one pentode and refers to 6B8G for additional characteristics; no separate absolute diode electrical maximum established by attached Brimar document. Keep diode current and capacitance flags NULL/unchanged rather than infer from cross-reference.
Section 2
Pentode
- Max plate voltage
- 300 V
- Max screen voltage
- 125 V
- Max plate dissipation
- 2.25 W
- Max screen dissipation
- 0.3 W
Pentode section of Brimar 6B7E double-diode pentode for signal voltage amplification with associated radio detection and automatic volume control. Source refers to 6B8G for further electrical characteristics. Existing plate 300 V, screen 125 V, plate dissipation 2.25 W and screen dissipation 0.3 W preserved as previously sourced; no further maximum ratings or intrinsic gm inferred from related but distinct designation. Two separate physical diode sections retained.
Section 3
Diode
No fixed ratings are recorded for this section.
Second physical diode of Brimar 6B7E double-diode pentode, for receiver detector and AVC rectification applications. Manufacturer confirms double-diode plus pentode construction and references 6B8G for further information. This is a distinct physical diode, not compressed into first section; no unsupported voltage/current ratings promoted.
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.