Specialized - Ballast ·Ballast
Current-regulator ballast designed to stabilize a nominal 100 mA series-heater string, with published regulation from approximately 87–108 mA over its operating voltage range.
Current regulator for controlling 100 mA series-heater strings.
Medium 7-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Published ratings and characteristics promoted from the approved datasheet.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Heater Voltage
26 V
Published datasheet value
Heater Current
300 mA
Published datasheet value
Anode Voltage RMS
250 V
EachAnode
Rectified DC Current
120 mA
Published datasheet value
Rectified DC Current - Voltage Doubler
75 mA
VoltageDoubler
Rectified DC Current - Full Wave
120 mA
FullWave
Data set 02
Published operating points and test conditions from this source.
Half-wave DC output current
120 mA
Published datasheet value
Voltage-doubler DC output current
75 mA
Published datasheet value
Full-wave DC output current
120 mA
Published datasheet value
Data set 03
Published operating points and test conditions from this source.
Regulated current nominal
100 mA
Regulated current minimum
87 mA
Regulated current maximum
108 mA
Mains voltage maximum
260 V
Data set 04
Published operating points and test conditions from this source.
Regulated current nominal
100 mA
Regulated current minimum
87 mA
Voltage=70V
Regulated current maximum
108 mA
Voltage=122.5V
Regulated voltage range
70-122.5 V
Maximum heat development
13.5 W