Data set 01
1953 RFT Rundfunk Technik
Published operating points and test conditions from this source.
SECTION 1
Diode
Characteristics
Heater voltage
19 V
Published nominal value
Heater current
100 mA
Published nominal value
Diode (NOT rectifier) ·Diode-Diode
UAA91
Series-heater two-section diode designed for receiving equipment and applicable at intermediate frequencies commonly used in VHF reception.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 19 V / 100 mA
Description
The UAA91 is a two-section diode intended for series-heater receiving equipment. The datasheet gives ratings per diode system and notes applicability at the intermediate frequencies commonly used for VHF reception.
Socket description
Miniature 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 19 V
- Nominal heater current
- 100 mA
- 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
2 physical sections, each with unique specifications.
Section 1
Diode
X-ray radiationInterelectrode capacitances
- Max cathode current
- 9 mA
- Rectifier peak inverse voltage
- 330 V
- Rectifier nominal output current
- 9 mA
- Rectifier peak forward current
- 54 mA
Published ratings/characteristics promoted where clearly stated; repeated identical sections compressed where applicable.
Section 2
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Second physical diode section added in approved reconciliation.
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
1959 Telefunken
Published operating points and test conditions from this source.
SECTION 1
Diode
Other
Negative peak diode voltage
330 V
PerSystem
Diode current
9 mA
PerSystem
Peak diode current
54 mA
PerSystem