Voltage Pentode - Sharp Cutoff (single) ·Pentode
6582A
Miniature hard-glass sharp-cutoff RF pentode from Bendix. Its professional construction supports fixed-gain high-frequency signal amplification in applications requiring durable miniature tube construction.
- Sections
- 1
- Base
- -
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 250 mA
Description
Miniature hard-glass sharp-cutoff RF pentode.
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
- 250 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
1 physical section, each with unique specifications.
Section 1
Pentode
- Plate resistance
- 500000 Ω
- Transconductance
- 0.0045 S
- Max plate voltage
- 200 V
- Max screen voltage
- 155 V
- Max plate dissipation
- 2 W
- Max screen dissipation
- 0.85 W
- Max cathode current
- 20 mA
Bendix 6582A miniature hard-glass sharp-cutoff RF pentode, indirect cathode, JEDEC nine-pin E9-1 with 9EJ basing, 6.3 V 250 mA nominal heater per manufacturer's original sheet; prior 300 mA parent current corrected. Absolute ratings plate 200 V, screen 155 V, plate dissipation 2 W, screen dissipation 0.85 W, cathode DC current 20 mA, heater-cathode voltage 300 V, bulb 300°C max. Typical Class A1 at plate 120 V, screen 120 V, cathode resistor 180 Ω: plate 7.5 mA, screen 2.5 mA, gm 4500 µmhos (0.0045 S), plate resistance approximately 0.5 MΩ. With #315 external shield, capacitances grid-to-plate 0.03 pF max, input 4.5 pF, output 3.0 pF. Typical characteristics must not be confused with maximum ratings.
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.