Diode (NOT rectifier) ·Diode-Diode
AB1
Four-volt indirectly heated duodiode; available source provides construction and electrical data but insufficient application detail for a narrower functional category.
- Sections
- 2
- Base
- B35
- Socket code
- -
- Base pins
- -
- Nominal heater
- 4 V / 650 mA
Description
4 V indirectly heated duodiode. Electrical ratings and operating characteristics were extracted from the supplied 4-volt valve data table, including the published heater data and available section-level values.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- B35
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 4 V
- Nominal heater current
- 650 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
B35 - 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
No fixed ratings are recorded for this section.
Two identical diode sections compressed to one section row.
Section 2
Diode
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.