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36AM3B

Indirectly heated half-wave rectifier with a controlled-warmup tapped heater for series-string equipment and panel-lamp shunting. It is a conventional power-supply rectifier rather than a damper diode.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 5BQ
Socket code: B7G
Base pins: 7
Nominal heater: 36 V / 100 mA

Description

Half-wave rectifier with 100 mA controlled-warmup tapped heater usable as a panel-lamp shunt. It uses a nominal 36 V, 0.1 A heater. The supplied datasheet was used for ratings, characteristics, and typical operating data.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 5BQ
Socket code: B7G
Base pins: 7
Nominal heater voltage: 36 V
Nominal heater current: 100 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

5BQ - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN3H	—	H — Heater Chart transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 127, 5BQ
PIN4H	—	H — Heater Chart transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 127, 5BQ
PIN5P	A	P — Plate (Anode) Chart transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 127, 5BQ
PIN6HCT	—	HCT — Heater Center Tap Chart transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 127, 5BQ
PIN7K	A	K — Cathode Chart transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 127, 5BQ

Section ratings

1 physical section, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 265 V
Rectifier nominal output current: 82 mA
Rectifier peak forward current: 580 mA
Rectifier forward voltage drop: 16 V
Rectifier max heater-cathode voltage: 250 V
Rectifier warm-up time: 20 s

half-wave rectifier

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

Rectifier

Characteristic

Heater warm-up time
20 s

Other

AC plate supply voltage RMS
120 V
CapacitorInputFilter
DC output current
75 mA
CapacitorInputFilter
DC output voltage at filter input
120 V
PanelLampCircuit

Data set 02

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

RectifierMaximumPeakInverseVoltage
365 V
Published datasheet value
RectifierNominalOutputCurrent
82 mA
Published datasheet value
RectifierPeakForwardCurrent
530 mA
Published datasheet value
Heater Voltage
36 V
Nominal heater rating
Heater Current
100 mA
Nominal heater rating
Heater Tap Voltage
32 V
Pins3And6

Characteristic

Heater Warmup Time
20 s
TubeVoltageDropAt150mA
16 V
PlateCurrent=150mA

Data set 03

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Peak Inverse Voltage
365 V
DC Output Current
82 mA
Typical DC Output Current
75 mA

Characteristics

Warm-up Time
20 s