8236

Heavy-duty all-service beam-power pentode for television horizontal-deflection and RF amplification to approximately 30 MHz, with roughly 60 W plate dissipation.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 2.5 A

Description

All-service beam-power pentode for horizontal-deflection circuits and RF power-amplifier service to 30 MHz, using a carbon anode and hard-glass bulb.

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: 2.5 A
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

Beam Power

X-ray radiationInterelectrode capacitances

Transconductance: 0.0105 S
Max plate voltage: 1200 V
Max screen voltage: 200 V
Max plate dissipation: 60 W
Max cathode current: 230 mA

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

Heater voltage
6.3 V
Nominal
Heater current
2.5 A
Nominal
Maximum operating frequency
30 MHz
RF power amplifier