Voltage Pentode ·Pentode
Low-noise indirectly heated AF pentode, commercially equivalent to CV2801/EF86. General Electric documentation identifies it for sensitive audio-frequency voltage amplification where noise performance is a primary concern.
Low-noise indirectly heated AF pentode, commercial equivalent of CV2801/EF86.
Septar 7-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
No fixed ratings are recorded for this section.
Promoted fields mapped semantically from printed ratings/characteristics headings; pulsed and microwave-specific limits remain in parameter rows when fixed-field semantics are ambiguous.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
— Cgl—a 0
-25 pF
— Cgl—a 0-025 pF €gl—h 0-0025 pF
Cgl—all less a 4.0 p¥ Ca—all less g1
55 pF
Cgl—all less a 4.0 p¥ Ca—all less g1 55 pF
Cl 0
-1 pF
Cl 0-1pF