Data set 01
1957 Philips Receiving and Amplifying Tubes
Published operating points and test conditions from this source.
Triode
Application
Application
Telephone equipment / preamplifier
Voltage - Triode (single) ·Triode
Directly heated telephone-service triode for preamplifier use in professional communications equipment.
Telephone-service directly heated triode for preamplifier use.
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 maximum ratings/general electrical characteristics promoted directly; pulse, RF, capacitance, cooling, and service-specific values retained in TUBE_SECTION_PARAMETER.
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.
Application
Telephone equipment / preamplifier
Data set 02
Published operating points and test conditions from this source.
Maximum plate voltage
17000 V
PromotedValue
Maximum screen-grid voltage
2000 V
PromotedValue
Maximum plate dissipation
7500 W
PromotedValue
Maximum cathode/plate current
5 A
PromotedValue
Terminal Temperature (All terminals)
250 mA
Published datasheet value
Temperature
250 mA
Published datasheet value
Mu / amplification factor
6
PromotedValue
Heater/filament voltage
22 V
Nominal operating value
Heater/filament current
12.6 A
Nominal operating value
Voltage (ac or dc) — published value 1
22 V
Published datasheet value
Voltage (ac or dc) — published value 2
2 V
Published datasheet value
Current at 22 volts — published value 1
22 V
Published datasheet value
Current at 22 volts — published value 2
12.6 V
Published datasheet value
Minimum heating time
180
Published datasheet value
Mu-Factor, grid No.2 to grid No.l
6
Published datasheet value
DC Plate Voltage
176000 V
Published datasheet value
Instantaneous Peak Plate Voltage
226000 V
Published datasheet value
(Pulse duration < 0.1 s)
0.1
Pulse
No.2 Voltage
2000 V
Published datasheet value
DC Grid No.l Voltage
-600 V
Published datasheet value
Grid No.l Voltage
150 V
Published datasheet value
Peak Plate Current
40
Published datasheet value
DC Plate Current
5
Published datasheet value
Plate Dissipation (Average)
7500 W
Published datasheet value
6 See dimensional outline for temperature measurement points
6
Published datasheet value
Data set 03
Published operating points and test conditions from this source.
Plate voltage
130 V
Plate current
8.5 mA
Transconductance
1.3 mA/V
Grid voltage
-8.4 V
Amplification factor
7
Plate resistance
5.5 kohm