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Voltage - Triode (single high frequency) ·Triode

8527

Rugged UHF triode for high-frequency service in demanding equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B8D
Base pins: -
Nominal heater: 6.3 V / 150 mA

Description

The Toshiba 8527 is a rugged medium-mu micro-metal triode for RF/IF amplification or oscillator service to about 500 MHz.

Socket description

Subminiature 8-lead

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B8D
Base pins: -
Nominal heater voltage: 6.3 V
Nominal heater current: 150 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

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 4150 Ω
Transconductance: 0.0065 S
Amplification factor: 27
Max plate voltage: 165 V
Max plate dissipation: 3.3 W

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.

Data set 01

1964 RMA EIA

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Heater Voltage
6.3 V
Heater Current
150 mA
Grid-Plate Capacitance
1.3 pF
Input Capacitance
2.4 pF
Output Capacitance
2.4 pF
Plate Voltage
150 V
ClassA
Plate Current
13 mA
ClassA
Plate Resistance
4150 ohm
ClassA
Transconductance
6500 uS
ClassA
Amplification Factor
27 ratio
ClassA
Maximum Intended Frequency
500 MHz

Other

Maximum Plate Voltage
165 V
Maximum Plate Current
22 mA
Maximum Plate Dissipation
3.3 W