Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristic
HeaterOrFilamentVoltage
6.3 V
HeaterOrFilamentCurrent
300 mA
Specialized - Cathode Ray ·CathodeRay
ST3183
Sylvania ST3183-family cathode-ray display tube with a 6.3 V heater, high-voltage anode operation to about 13 kV, and manufacturer-defined focusing and beam-control characteristics.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- E9-37
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 300 mA
Description
Monitor CRT with electrostatic focus and magnetic deflection, aluminized P4 screen, bonded shield, and variant-specific face/cover transmission.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- E9-37
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 300 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
E9-37 - 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
Cathode Ray
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 13000 V
Ratings and characteristics promoted from the supplied Sylvania source where explicitly published.
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
1965 Sylvania Electronic Tubes Vol3
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Heater voltage
6.3 V
Heater current
270 mA to 330 mA
Anode voltage maximum
13000 V
Grid No. 4 focus-electrode voltage range maximum rating
-550 to 1100 V
Grid No. 2 voltage maximum
550 V
Grid No. 1 negative bias maximum
-155 V
Grid No. 1 positive bias maximum
0 V
Grid No. 1 positive peak maximum
2 V
Peak heater-cathode voltage maximum
100 V
Anode voltage
- to 10000 V
Grid No. 4 focus voltage
-125 to 300 V
Grid No. 2 voltage
300 V
Grid No. 1 cutoff voltage
-60 to -40 V
Characteristic
Emission warm-up time approximately
30 s
Brightness at 100 uA anode current minimum
60 ft-L
Face transmittance approximately
92 %
Combined transmittance approximately
92 %
Capacitance
Cathode to all other electrodes capacitance maximum
10 pF
Grid No. 1 to all other electrodes capacitance maximum
15 pF
External conductive coating to anode capacitance
200 to 350 pF
CircuitValue
Grid No. 1 circuit resistance maximum
1.5 Mohm