Tube-number record
3A/142A
0 archive entries
ClassRepeater Triode
Base4-pin
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialOxide-coated
Absolute Maximum Ratings
Plate Voltage190 V
Cathode Current1.5 mA
Audio Performance
Key Features
- Oxide-coated filament
- Repeater Triode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 130 V | 473 | 63000 | 29.8 | 0.58 mA |
| Typical | 130 V | 567.9 | 53000 | 30.1 | 0.85 mA |
| Maximum Operating Conditions | 190 V | 702.3 | 43000 | 30.2 | 1.46 mA |
Application Notes
3A/142AY is the 3A/142A tested to special limits for replacement purposes only.
0 results