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RL65A

Transmitting pentode with approximately 65 W plate dissipation for radio-frequency oscillator and power-amplifier service. Its substantial dissipation supports medium-power professional transmitting applications.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B4
Base pins: 4
Nominal heater: 10 V / 1.25 A

Description

Transmitting pentode with 65 W plate dissipation for radio-frequency oscillator and power-amplifier service.

Socket description

European 4-pin base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B4
Base pins: 4
Nominal heater voltage: 10 V
Nominal heater current: 1.25 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

Pentode

X-ray radiationInterelectrode capacitances

Transconductance: 0.0015 S
Max plate voltage: 1500 V
Max screen voltage: 400 V
Max plate dissipation: 65 W
Max screen dissipation: 15 W
Max cathode current: 100 mA

Semantically matched promoted fields only.

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

1966 Tesla Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

'-i f
10 V
If
1.65 A to 2.05 A
3KCIIJIYATAL[HOHHbIE 1[AHHbIE Ua (f
3 Mc/s
f < 3 Mc/s
3KCIIJIYATAL[HOHHbIE 1[AHHbIE Ua (f < 3 Mc/s) max.
1500 V
f < 3 Mc/s
Wa max.
65 W
Published value
1 a
f < 3 Mc/s
la (f
3 Mc/s
f < 3 Mc/s
la (f < 3 Mc/s) max.
125 mA
f < 3 Mc/s
Ug2 max.
400 V
Wg2 max.
15 W
1g2 max.
20 mA
OXJ
1 A

Capacitance

Cgf I
1 pF
Ca
10 pF
Ca/gi
0.01 pF

Characteristic

Ua
1500 V
Published value
1 a
la
50 mA
S
1.5 mA/V
R
65 A