Data set 01
193X Cossor
Published operating points and test conditions from this source.
SECTION 1
Heptode
Other
Oscillator anode maximum voltage
150 V
Published datasheet value
Voltage Radio Detector Converter ·Heptode
210PG
Cossor battery heptode frequency changer for superheterodyne receivers. Its multi-grid construction combines oscillator and mixer functions while operating from modest battery-receiver supplies.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B4
- Base pins
- -
- Nominal heater
- 2 V / 100 mA
Description
Cossor 210PG heptode for receiver/amplifier service as specified in the supplied catalogue datasheet.
Socket description
European 4-pin base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B4
- Base pins
- -
- Nominal heater voltage
- 2 V
- Nominal heater current
- 100 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
Heptode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 150 V
- Max screen voltage
- 80 V
Cossor 210 P.G. directly heated battery variable-mu pentagrid (heptode) frequency changer with 2.0 V 0.1 A filament. Includes internally coupled local oscillator and mixer for superheterodyne receivers and supports automatic volume control. Manufacturer maxima modulator-anode 150 V, modulator-screen 80 V and oscillator anode 150 V, the latter held as an existing parameter. Chart operating conditions Va = oscillator Va = 120 V and screen 60 V. Conversion conductance cannot be substituted for intrinsic transconductance. One physical heptode section.
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.