Tube-number record
1611
0 archive entries
BrandRCA
ClassPower Amplifier Pentode
BaseOctal
Filament6.3 V @ 700 mA
Construction
Primary TypePentode
EnvelopeMetal
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage375 V
Plate Dissipation11 W
Grid 2 Voltage285 V
Audio Performance
Key Features
- intended for use as a relay tube in equipment on ships for automatically announcing SOS signals
- special Ip-Eg characteristic having suitable slope
- minimized variation between tubes
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Pentode | 250 V | 2500 | 80000 | — | 34 mA |
Application Notes
Physical characteristics of the 1611 are the same as those of Type 6F6. RCA-1621 availability note mentioned in documentation context.
0 results