Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Diode
Characteristic
Heater Voltage
13.5 V
Heater Current
155 mA
Diode (NOT rectifier) ·Diode-Diode
7055
High-perveance mobile-service twin diode, electrically similar to the 6AL5 family apart from heater characteristics.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 13.5 V / 155 mA
Description
Mobile-service high-perveance twin diode, similar to 6AL5 except heater characteristics.
Socket description
Miniature 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 13.5 V
- Nominal heater current
- 155 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
2 physical sections, each with unique specifications.
Section 1
Diode
X-ray radiationInterelectrode capacitances
- Max cathode current
- 10 mA
- Rectifier peak inverse voltage
- 350 V
- Rectifier nominal output current
- 10 mA
- Rectifier peak forward current
- 60 mA
- Rectifier max heater-cathode voltage
- 120 V
Representative row for two identical diodes.
Section 2
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Second physical diode section added in approved section-structure reconciliation.
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 02
1960 RCA Industrial and Communications Types
Published operating points and test conditions from this source.
SECTION 1
Diode
CrossReference
Prototype / equivalent family
6AL5
Application
Application
Detector / full-wave rectifier
Data set 03
1965 Sylvania Electronic Tubes Vol3
Published operating points and test conditions from this source.
SECTION 1
Diode
Other
Heater voltage range
12 to 15 V
Heater-cathode voltage maximum
120 V
Characteristics
Heater current at 13.5 V
155 mA
Capacitance
Plate input capacitance per section
3.2 pF
Plate-to-plate capacitance
0.026 pF
Cathode input capacitance per section
3.6 pF
CrossReference
Equivalent type
6AL5
Application
Application
Detector / clipper / low-current rectifier
Data set 04
1971 RCA HB3 Binder 3 of 7
Published operating points and test conditions from this source.
SECTION 1
Diode
Other
Heater voltage
13.5 V
Heater current
155 mA
Peak inverse voltage
350 V
EachDiode
Peak plate current
60 mA
EachDiode
DC output current
10 mA
EachDiode
AC plate voltage RMS
117 V
Rectifier
DC output current typical
9 mA
EachDiode
Capacitance
Plate-to-cathode capacitance
3.2 pF
EachDiode
Plate-to-plate coupling capacitance
0.026 pF
BetweenSections