Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Capacitance
Heater Cathode Capacitance
5 pF
Approximate
Other
HighVoltageElectrodeMaximum
20000 V
CRT
Specialized - Cathode Ray ·CathodeRay
27EP4
Twenty-seven-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation provides focusing, optical, and electrical characteristics for large-screen receiver display service.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- 12D
- Socket code
- DUODECAL5
- Base pins
- 5
- Nominal heater
- 6.3 V / 600 mA
Description
Direct-view cathode-ray picture tube intended for television display service. The supplied Tung-Sol datasheet provides electrical ratings, operating conditions, capacitances, optical characteristics, focusing and deflection information. Features an aluminized screen where specified by this designation.
Socket description
Small-shell Duodecal 5-contact CRT base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 12D
- Socket code
- DUODECAL5
- Base pins
- 5
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
12D - 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
- 20000 V
- Max screen voltage
- 500 V
Promoted values are taken from clearly identified printed ratings/characteristics.
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
1966 Tung Sol Electronic Tubes 4 of 4
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristics
MAGNETIC FOCUS A DEFLECTION — value 1
24
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
MAGNETIC FOCUS A DEFLECTION — value 2
181
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
MAGNETIC FOCUS A DEFLECTION — value 3
2
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DIRECT INTERELECTR ODE CAPACITANCES (A PPROX.) — value 1
1
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DIRECT INTERELECTR ODE CAPACITANCES (A PPROX.) — value 2
0
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
GRID #1 TO ALL OTHER ELECTRODES — value 1
1
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
GRID #1 TO ALL OTHER ELECTRODES — value 2
0
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
GRID #1 TO ALL OTHER ELECTRODES — value 3
6
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
PHOSPHOR NUMBER
4
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
FACEPLATE LIGHT TRANSMISSION AT CENTER (APPROX.) — value 1
11 percent
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
FACEPLATE LIGHT TRANSMISSION AT CENTER (APPROX.) — value 2
70 percent
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
HEATER
3 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
HEATER CURRENT
0 mA
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
HEATER POSITIVE WITH RESPECT TO CATHODE
1 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
LINE VOLTAGE WNICM DO XOT CAUSE iNE NA%IMUM RATINGS TO BE EXCEEDED BY MORE TX AN 105. — value 1
1 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
LINE VOLTAGE WNICM DO XOT CAUSE iNE NA%IMUM RATINGS TO BE EXCEEDED BY MORE TX AN 105. — value 2
1 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
LINE VOLTAGE WNICM DO XOT CAUSE iNE NA%IMUM RATINGS TO BE EXCEEDED BY MORE TX AN 105. — value 3
105 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
BIF TXE TUBE IS OPERATED AT VOLTAGE IN E%CESS OF 16,000 yOL TS, %-RAY RADIATION SHIEI DING MAY BE — value 1
0 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
BIF TXE TUBE IS OPERATED AT VOLTAGE IN E%CESS OF 16,000 yOL TS, %-RAY RADIATION SHIEI DING MAY BE — value 2
16 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
BIF TXE TUBE IS OPERATED AT VOLTAGE IN E%CESS OF 16,000 yOL TS, %-RAY RADIATION SHIEI DING MAY BE — value 3
0 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DC ANODE IGRID #3 VOLTAGE — value 1
1 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DC ANODE IGRID #3 VOLTAGE — value 2
3 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DC ANODE IGRID #3 VOLTAGE — value 3
0 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DC GRID #2 VOLTAGE
2 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DC GRID #1 VOLTA6E D — value 1
1 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DC GRID #1 VOLTA6E D — value 2
-33 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DC FOCUSING COIL CURRENT (APPROX.)E
20 mA
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DC ION TRAP CURRENT STANDARD COIL #111 (APPROX.) — value 1
111 mA
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DC ION TRAP CURRENT STANDARD COIL #111 (APPROX.) — value 2
5 mA
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
DC ION TRAP CURRENT STANDARD COIL #111 (APPROX.) — value 3
5 mA
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
ION TRAP MAGNET (RATED STRENGTH) APPROX. — value 1
10
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
ION TRAP MAGNET (RATED STRENGTH) APPROX. — value 2
38
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
D VI SU AL E%TINCTION OF UNDEFL ELTED FOCUSED SPOT.
0
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
EFOR STANDARD FOCUS COIL 11109, OR EQVI VAL EM T, WI TX TXE COMBINED GRID N1 BIAS VOI TALE AND VIDEO — value 1
11109
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
EFOR STANDARD FOCUS COIL 11109, OR EQVI VAL EM T, WI TX TXE COMBINED GRID N1 BIAS VOI TALE AND VIDEO — value 2
0
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
SIGNAL VOLTAGE AOJU STED TO PRODUCE A MI GXL IGXT BRI GXTNESS OF 20 f00T LAMBERTS ON A 24" BY — value 1
1 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
SIGNAL VOLTAGE AOJU STED TO PRODUCE A MI GXL IGXT BRI GXTNESS OF 20 f00T LAMBERTS ON A 24" BY — value 2
0 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
SIGNAL VOLTAGE AOJU STED TO PRODUCE A MI GXL IGXT BRI GXTNESS OF 20 f00T LAMBERTS ON A 24" BY — value 3
24 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
1R 1/2" PICTURE SIZE. DI ST AXCE FROM REFERENCE LINE TO CENTER OF AIR GAP ON FOCUS COIL SHALL BE — value 1
11
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
1R 1/2" PICTURE SIZE. DI ST AXCE FROM REFERENCE LINE TO CENTER OF AIR GAP ON FOCUS COIL SHALL BE — value 2
0
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
1R 1/2" PICTURE SIZE. DI ST AXCE FROM REFERENCE LINE TO CENTER OF AIR GAP ON FOCUS COIL SHALL BE — value 3
0
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
ANODE 15 16
1516
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
Other
MAXIMUM DC ANODE I GRID #J~VOL TA GE B — value 1
1 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
MAXIMUM DC ANODE I GRID #J~VOL TA GE B — value 2
0 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
MAXIMUM DC GRID #2 VOLTAGE — value 1
2 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
MAXIMUM DC GRID #2 VOLTAGE — value 2
500 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
MAXIMUM GRID #1 VOLTAGE
1 V
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
MAXIMUM GRID #i CIRCUIT RESISTANCE — value 1
1 Mohm
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
MAXIMUM GRID #i CIRCUIT RESISTANCE — value 2
1.5 Mohm
Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.
Data set 03
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
HeaterOrFilamentVoltageNominal
6.3 V
HeaterOrFilamentCurrentNominal
600 mA
MaxPlateVoltage
20000 V
MaxScreenVoltage
500 V
Typical Anode Voltage
16000 V
Typical Grid2 Voltage
300 V
MaximumHeaterCathodeVoltageWarmup
410 V
HeaterNegative
Capacitance
Cathode To All Other Electrodes Capacitance
5 pF
Grid1 To All Other Electrodes Capacitance
6 pF