Data set 01
9999 Mixed G 1000
Published operating points and test conditions from this source.
SECTION 1
Heptode
Other
Heater/filament voltage
6.3 V
Heater voltage
Heater/filament current
300 mA
Heater current
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- 7
- Nominal heater
- 6.3 V / 300 mA
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
- 6.3 V
- Nominal heater current
- 300 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
No fixed ratings are recorded for this section.
RCA 6A7S is a special Majestic receiver replacement pentagrid/heptode frequency converter, indirectly heated cathode with 6.3 V 0.3 A heater. Uses a SMALL seven-pin base requiring a socket distinct from ordinary medium seven-pin types, with external shield connected to cathode and separate top cap. Manufacturer states basing parallels 6A7 except shield connection, with typical operating curves corresponding to the 6A7 family. Related 6A8-family maximum ratings and operating values are NOT blindly copied into 6A7S; intrinsic transconductance left NULL because converter gain is conversion conductance. Physical Heptode section index normalized from 0 to 1.
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.