Data set 01
195X Tesla
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Plate voltage
250 V
Plate current
60 mA
Grid bias
-45 V
Warm-up time
16 s
Other
Output power, class A
4.2 W
ClassA
Power - Triode ·Triode
AD1N
Directly heated low-mu power triode designed for Class A audio-frequency output amplification. Manufacturer operating data emphasize low plate resistance, substantial current, and several watts of single-ended audio output rather than RF transmitting service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- P8A
- Base pins
- 8
- Nominal heater
- 4 V / 2 A
Description
Power triode for Class A audio-frequency power-amplifier service.
Socket description
European 8-pin side-contact base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- P8A
- Base pins
- 8
- Nominal heater voltage
- 4 V
- Nominal heater current
- 2 A
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
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
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 1035 Ω
- Transconductance
- 0.0043 S
- Amplification factor
- 4.4
- Max plate voltage
- 295 V
- Max plate dissipation
- 15 W
Electrical section mapped from published characteristics and maximum ratings.
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
1969 Tesla Manual of Electronic Tubes
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Heater voltage
4 V
Published nominal value
Heater current
2 A
Published nominal value
Transconductance
4300 µS
Published operating characteristic
Other
Maximum plate dissipation
15 W
Published maximum rating
Audio output power
4.2 W
Class A