Power - Beam (NOT sweep) ·BeamPower
Beam-power amplifier designed for power-output service at relatively low plate and screen voltages, suited to receiver audio stages.
Beam-power amplifier designed for power-output service at relatively low plate and screen voltages.
International Octal
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1Pin 1 | — | NC | Verified 12L6GT/25L6GT manufacturer basing, 7AC |
| PIN2Pin 2 | — | H — Heater | Verified 12L6GT/25L6GT manufacturer basing, 7AC |
| PIN3Pin 3 | A | P — Plate (Anode) | Verified 12L6GT/25L6GT manufacturer basing, 7AC |
| PIN4Pin 4 | A | G2 — Screen Grid | Verified 12L6GT/25L6GT manufacturer basing, 7AC |
| PIN5Pin 5 | A | G1 — Control Grid | Verified 12L6GT/25L6GT manufacturer basing, 7AC |
| PIN7Pin 7 | — | H — Heater | Verified 12L6GT/25L6GT manufacturer basing, 7AC |
| PIN8Pin 8 | A | BP — Beam-Forming PlateGroup AC8 | Verified 12L6GT/25L6GT manufacturer basing, 7AC |
| PIN8Pin 8 | A | K — CathodeGroup AC8 | Verified 12L6GT/25L6GT manufacturer basing, 7AC |
1 physical section, each with unique specifications.
Section 1
Beam-power amplifier section.
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.
Input capacitance
5 pF
Plate voltage
200 V
ClassA
Screen voltage
135 V
ClassA
Grid voltage
-14 V
ClassA
Plate current
55 mA
ClassA
Screen current
3 mA
ClassA
Load resistance
3000 ohm
ClassA
Power output
5.5 W
ClassA
Plate resistance
20000 ohm
ClassA
Transconductance
6200 uS
ClassA
Data set 02
Published operating points and test conditions from this source.
Power Output
3.6 W
ClassA