Rectifier - TV Line Scan Boost ·Rectifier
High-voltage television rectifier in the combined 3DB3/3CY3 family, designed for flyback-derived picture-tube supplies. It provides specialized pulsed high-voltage rectification for CRT accelerating-voltage generation.
A vacuum rectifier documented for television or power-supply service.
International Octal
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
Promoted from printed flyback-rectifier maximum ratings and average characteristics.
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.
Peak inverse voltage, DC component
30000 V
FlybackRectifierService
Heater voltage absolute maximum
3.65 V
Heater voltage absolute minimum
2.65 V
X-radiation output maximum
25 mR/hr
At published maximum-rated operating conditions
Plate to heater/cathode/internal shield capacitance
1.5 pF
Data set 02
Published operating points and test conditions from this source.
Designed to minimize X-Radiation — published value 1
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Designed to minimize X-Radiation — published value 2
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Voltage, ac or do — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Voltage, ac or do — published value 2
3.15 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Voltage, ac or do — published value 3
0.5 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Current at Eh = 3.15 V — published value 1
3.15 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Current at Eh = 3.15 V — published value 2
0.245 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Direct Interelectrode Capacitance:a
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Instantaneous Tube Voltage — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Instantaneous Tube Voltage — published value 2
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Plate Current (ib) = 7 mA — published value 1
7 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Plate Current (ib) = 7 mA — published value 2
60 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Inverse Plate Voltaged
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Voltage (absolute min.) — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Voltage (absolute min.) — published value 2
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Voltage (absolute min.) — published value 3
2.65 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
e Measured without external shield in accordance with the current — published value 1
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
e Measured without external shield in accordance with the current — published value 2
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
b Ais defined in the current issue of E[A Standazd RS-239A — published value 1
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
b Ais defined in the current issue of E[A Standazd RS-239A — published value 2
-239
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
rl This rating is applicable when the duration of the voltage pulse — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
rl This rating is applicable when the duration of the voltage pulse — published value 2
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
rl This rating is applicable when the duration of the voltage pulse — published value 3
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Measurement of Heater Voltage. It is recommended that a — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Measurement of Heater Voltage. It is recommended that a — published value 2
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Measurement of Heater Voltage. It is recommended that a — published value 3
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
thermocouple rms voltmeter be used to measure heater — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
thermocouple rms voltmeter be used to measure heater — published value 2
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
thermocouple rms voltmeter be used to measure heater — published value 3
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
voltage. The meter and its leads must be insulated to — published value 1
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
voltage. The meter and its leads must be insulated to — published value 2
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
circuit during this measurement, stray capacitances to ground — published value 1
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
circuit during this measurement, stray capacitances to ground — published value 2
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
X-Radiation Characteristic
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
X-Radiation, tWaximum — published value 1
0 mR/hr
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
X-Radiation, tWaximum — published value 2
25 mR/hr
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
changes in the X-radiation characteristic of the tube. Equip — published value 1
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
changes in the X-radiation characteristic of the tube. Equip — published value 2
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
X-Radiation from Receiving Tubes", and controlled in — published value 1
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
X-Radiation from Receiving Tubes", and controlled in — published value 2
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
X-Radiation from Receiving Tubes", and controlled in — published value 3
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
mended Practice for Quality Control of X-Radiation Emitted — published value 1
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
mended Practice for Quality Control of X-Radiation Emitted — published value 2
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
mended Practice for Quality Control of X-Radiation Emitted — published value 3
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
from High Voltage Rectifier and Shunt Regulator Receiving — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
from High Voltage Rectifier and Shunt Regulator Receiving — published value 2
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
from High Voltage Rectifier and Shunt Regulator Receiving — published value 3
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
X-Radiation
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
The high voltages associated with the 3DB3 result in — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
The high voltages associated with the 3DB3 result in — published value 2
3 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
The high voltages associated with the 3DB3 result in — published value 3
3 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
production of X-Radiation which may constitute a health — published value 1
0 mA
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
production of X-Radiation which may constitute a health — published value 2
0 mA
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
production of X-Radiation which may constitute a health — published value 3
0 mA
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
voltage is adjusted to the recommended value and that any — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
voltage is adjusted to the recommended value and that any — published value 2
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
voltage is adjusted to the recommended value and that any — published value 3
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
The high voltages at which the 3DB3 is operated can be — published value 1
3 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
The high voltages at which the 3DB3 is operated can be — published value 2
3 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
The high voltages at which the 3DB3 is operated can be — published value 3
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
'adjustment of, any high voltage circuit — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
'adjustment of, any high voltage circuit — published value 2
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
voltage output terminal is properly grounded while inserting — published value 1
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
voltage output terminal is properly grounded while inserting — published value 2
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
voltage output terminal is properly grounded while inserting — published value 3
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Pint •Heater, Cathode,
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Pin 2 -Heater — published value 1
2
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Pin 2 -Heater — published value 2
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Pin 7 -Heater, Cathode, — published value 1
7
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Pin 7 -Heater, Cathode, — published value 2
0
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Instantaneous tube voltage drop
60 V
Explicitly published rectifier rating/characteristic.
MAXIMUM RATINGSb —High Voltage Rectifier
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Voltage (absolute max.) — published value 1
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Voltage (absolute max.) — published value 2
0 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Heater Voltage (absolute max.) — published value 3
3.65 V
Published datasheet value; multiple numbers on a row represent separate source limits or conditions.
Peak inverse plate voltage
38000 V
Explicitly published rectifier rating/characteristic.
Peak plate current
100 mA
Explicitly published rectifier rating/characteristic.
Average plate current
2.2 mA
Explicitly published rectifier rating/characteristic.
Data set 03
Published operating points and test conditions from this source.
Heater absolute maximum voltage
3.65 V
FlybackRectifier
Heater absolute minimum voltage
2.65 V
FlybackRectifier
X-radiation maximum
25 mR/hr
LotSamplingBasis