Datasheet · Tetrode · GEC·MOV
TT21 datasheet
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Key TT21 specs at a glance
- Type
- Tetrode
- Primary use
- Power (PP)
- Era
- 19570s
- Heating
- indirect
- Heater
- 6.3 V / 1.6 A
- gm (transconductance)
- 11.5 mA/V
- Max plate voltage
- 1250 V
- Max plate dissipation
- 37.5 W
- Base
- octal
- Manufacturer
- GEC·MOV
- Equivalents
- KT88 (different pinout)