Power - Beam (NOT sweep) ·BeamPower
Premium ruggedized 6L6-family beam-power tube for military, industrial, and audio-output service, combining familiar amplifier characteristics with enhanced durability.
Premium rugged beam power tube for military, industrial, and audio-output service. Data was extracted from the supplied Tung-Sol source, including published ratings, characteristics, and operating information.
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
Published ratings/characteristics promoted where applicable; additional source-table values retained in parameter rows.
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.
Heater voltage
6.3 V
Heater current
900 mA
Plate voltage
250270360360360350 V
Typical operating conditions
Plate current
12013488887888 mA
Typical operating conditions
Data set 02
Published operating points and test conditions from this source.
Plate resistance
22000 ohm
PromotedValue
Transconductance
0.0052 A/V
PromotedValue
6.3 VOLTS 0.9 AMP. — published value 1
6.3 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
6.3 VOLTS 0.9 AMP. — published value 2
0.9 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
ALENT TO TYPES 61.6 ANU 6L6G, EXCEPT THAT PLATE AND SCREEN DISSIPATIONS — published value 1
6
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
ALENT TO TYPES 61.6 ANU 6L6G, EXCEPT THAT PLATE AND SCREEN DISSIPATIONS — published value 2
6
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
HEATER
6.3 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
HEATER VOLTAGE — published value 1
6.3 voLTs
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
HEATER VOLTAGE — published value 2
6.3 voLTs
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
HEATER CURRENT — published value 1
0.9 AMP
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
HEATER CURRENT — published value 2
0.9 AMP
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
PLATE VOLTAGE — published value 1
300 voLTs
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
PLATE VOLTAGE — published value 2
350 voLTs
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
GRID #2 VOLTAGE — published value 1
200 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
GRID #2 VOLTAGE — published value 2
250 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
GRID #i VOLTAGE — published value 1
-12.5 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
GRID #i VOLTAGE — published value 2
-18 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
PEAK AF GRID #1 VOLTAGE — published value 1
12.5 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
PEAK AF GRID #1 VOLTAGE — published value 2
18 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
ZERO SIGNAL PLATE CURRENT — published value 1
48 mA
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
ZERO SIGNAL PLATE CURRENT — published value 2
54 mA
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
TRANSCONDUCTANCE — published value 1
5300
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
TRANSCONDUCTANCE — published value 2
5200
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
PLATE RESISTANCE — published value 1
33 OHMS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
PLATE RESISTANCE — published value 2
0 OHMS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
LOAD RESISTANCE — published value 1
4500 oHMs
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
LOAD RESISTANCE — published value 2
4200 oHMs
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
Maximum plate voltage
360 V
PromotedValue
Maximum screen voltage
270 V
PromotedValue
Maximum plate dissipation
26 W
PromotedValue
Maximum screen dissipation
2.5 W
PromotedValue
Maximum cathode current
150 mA
PromotedValue
MAXIMUM DC PLATE
4 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
MAXIMUM DC GRIC — published value 1
3 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
MAXIMUM DC GRIC — published value 2
0 VOLTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
MAXIMUM PLATE
26 WATTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
MAXIMUM — published value 1
2 WATTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
MAXIMUM — published value 2
3 WATTS
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
MAXIMUM SIGNAL GRID #2 CURRENT' — published value 1
4.7 mA
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
MAXIMUM SIGNAL GRID #2 CURRENT' — published value 2
7 mA
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.
MAXIMUM SIGNAL PLATE CURRENT — published value 1
55 mA
OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.