Data set 01
1999 Philips 0-D
Published operating points and test conditions from this source.
SECTION 1
Heptode
Characteristic
Conversion transconductance
750 µS
FrequencyConverter
SECTION 2
Triode
Other
Oscillator plate current
9.5 mA
Va=100V
Voltage - Triode (with diode, heptode or hexode) ·Heptode-Triode
CCH2
Triode-heptode frequency-converter valve for superheterodyne receivers. The triode supplies local oscillation while the heptode performs mixing, with heater requirements adapted to series-string designs.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 29 V / 200 mA
Description
CCH2 is a triode-heptode frequency converter. The supplied Philips datasheet was read for heater data, operating characteristics, limiting ratings, and section-level electrical information.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 29 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
2 physical sections, each with unique specifications.
Section 1
Heptode
X-ray radiationInterelectrode capacitances
- Max screen voltage
- 125 V
Triode-heptode frequency converter
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.0055 S
- Amplification factor
- 17.5
- Max plate voltage
- 300 V
- Max plate dissipation
- 1 W
- Max cathode current
- 24 mA
Triode-heptode frequency converter
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.