Voltage Pentode - High Frequency (single) ·Pentode
SP2220
AC/DC mains high-frequency pentode with published operating data for noise-suppression and automatic-tuning service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- 7
- Nominal heater
- 22 V / 200 mA
Description
AC/DC mains high-frequency pentode with operating data for noise suppression and automatic-tuning service.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- 7
- Nominal heater voltage
- 22 V
- Nominal heater current
- 200 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
1 physical section, each with unique specifications.
Section 1
Pentode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.0027 S
- Max plate voltage
- 250 V
- Max screen voltage
- 250 V
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.