TUBE: 5881
FICHIER SOURCE: sheets/049/5/5881.pdf
FABRICANT: RCA (Radio Corporation of America, Harrison, New Jersey)
ANNÉE: 1957 (2-57, TENTATIVE DATA)
TYPE: Beam Power Tube (beam tetrode)

===== PAGE 1 =====
RCA 5881
BEAM POWER TUBE
For audio-frequency power amplifier applications

GENERAL DATA
Electrical:
Heater, for Unipotential Cathode:
  Voltage ... 6.3 ac or dc volts
  Current ... 0.9 amp

Mechanical:
Mounting Position ... Any
Maximum Overall Length ... 3-15/32"
Maximum Seated Length ... 2-29/32"
Maximum Diameter ... 1-7/16"
Bulb ... T11
Base ... Short Intermediate-Shell Octal 7-Pin with External Barriers (JETEC No.B7-59)
Basing Designation for BOTTOM VIEW ... 7AC

Pin 1 - No Connection
Pin 2 - Heater
Pin 3 - Plate
Pin 4 - Grid No.2
Pin 5 - Grid No.1
Pin 7 - Heater
Pin 8 - Cathode, Grid No.3

AF POWER AMPLIFIER - Class A1
Maximum Ratings, Design-Center Values:
PLATE VOLTAGE ... 400 max. volts
GRID-No.2 (SCREEN-GRID) VOLTAGE ... 400 max. volts
GRID-No.2 INPUT ... 3 max. watts
PLATE DISSIPATION ... 23 max. watts
PEAK HEATER-CATHODE VOLTAGE:
  Heater negative with respect to cathode ... 200 max. volts
  Heater positive with respect to cathode ... 200 max. volts

Typical Operation and Characteristics:
Plate Voltage ......... 250 / 300 / 350 volts
Grid-No.2 Voltage ...... 250 / 200 / 250 volts
Grid-No.1 (Control-Grid) Voltage ... -14 / -12.5 / -18 volts
Peak AF Grid-No.1 Voltage ... 14 / 12.5 / 18 volts
Zero-Signal Plate Current ... 75 / 48 / 53 ma
Max.-Signal Plate Current ... 80 / 55 / 65 ma
Zero-Signal Grid-No.2 Current ... 4.3 / 2.5 / 2.5 ma
Max.-Signal Grid-No.2 Current ... 7.6 / 4.7 / 8.5 ma
Plate Resistance (Approx.) ... 30000 / 35000 / 48000 ohms
Transconductance ... 6100 / 5300 / 5200 µmhos
Load Resistance ... 2500 / 4500 / 4200 ohms
Total Harmonic Distortion ... 10 / 11 / 13 %
Max.-Signal Power Output ... 6.7 / 6.5 / 11.3 watts

===== PAGE 2 =====
Maximum Circuit Values:
Grid-No.1-Circuit Resistance:
  For fixed-bias operation ... 0.1 max. megohm
  For cathode-bias operation ... 0.5 max. megohm

AF POWER AMPLIFIER - Class A1 (Triode Connection - Grid No.2 Connected to Plate)
Maximum Ratings:
PLATE VOLTAGE ... 400 max. volts
PLATE DISSIPATION ... 26 max. watts
PEAK HEATER-CATHODE VOLTAGE: 200 max. volts (both)

Typical Operation:
Plate Voltage ... 250 / 300 volts
Grid-No.1 Voltage ... -18 / -20 volts
Peak AF Grid-No.1 Voltage ... 18 / 20 volts
Zero-Signal Plate Current ... 52 / 78 ma
Max.-Signal Plate Current ... 58 / 85 ma
Amplification Factor ... 8 / -
Transconductance ... 5250 / - µmhos
Load Resistance ... 4000 / 4000 ohms
Total Harmonic Distortion ... 6 / 5.5 %
Max.-Signal Power Output ... 1.4 / 1.8 watts

PUSH-PULL AF POWER AMPLIFIER - Class A1 (values for 2 tubes)
Maximum Ratings:
PLATE VOLTAGE 400 max / GRID-No.2 400 max / GRID-No.2 INPUT 3 max W / PLATE DISSIPATION 23 max W / Vhk 200 max
Plate Voltage ... 250 / 270 volts
Grid-No.2 Voltage ... 250 / 270 volts
Grid-No.1 Voltage ... -16 / -17.5 volts
Peak AF Grid-No.1-to-Grid-No.1 Voltage ... 32 / 35 volts

===== PAGE 3 =====
(continuation Class A1 PP)
Zero-Signal Plate Current ... 120 / 134 ma
Max.-Signal Plate Current ... 140 / 155 ma
Zero-Signal Grid-No.2 Current ... 10 / 11 ma
Max.-Signal Grid-No.2 Current ... 16 / 17 ma
Plate Resistance (Approx., per tube) ... 24500 / 23500 ohms
Transconductance (Per tube) ... 5500 / 5700 µmhos
Effective Load Resistance (Plate to plate) ... 5000 / 5000 ohms
Total Harmonic Distortion ... 2 / 2 %
Max.-Signal Power Output ... 14.5 / 17.5 watts

PUSH-PULL AF POWER AMPLIFIER - Class AB1 (values for 2 tubes)
Maximum Ratings: PLATE VOLTAGE 400 max / GRID-No.2 400 max / GRID-No.2 INPUT 3 max W / PLATE DISSIPATION 23 max W
Plate Voltage ... 360 / 360 volts
Grid-No.2 Voltage ... 270 / 270 volts
Grid-No.1 Voltage ... -22.5 / -22.5 volts
Peak AF G1-to-G1 Voltage ... 45 / 45 volts
Zero-Signal Plate Current ... 88 / 88 ma
Max.-Signal Plate Current ... 132 / 140 ma
Zero-Signal Grid-No.2 Current ... 5 / 5 ma
Max.-Signal Grid-No.2 Current ... 15 / 11 ma
Effective Load Resistance (Plate to plate) ... 6600 / 3800 ohms
Total Harmonic Distortion ... 2 / 2 %
Max.-Signal Power Output ... 26.5 / 18 watts

===== PAGE 4 =====
PUSH-PULL AF POWER AMPLIFIER - Class AB1 (Triode Connection - Grid No.2 Connected to Plate, 2 tubes)
Maximum Ratings: PLATE VOLTAGE 400 max / PLATE DISSIPATION 26 max W
Plate Voltage ... 400 volts
Grid-No.1 Voltage ... -45 volts
Peak AF G1-to-G1 Voltage ... 90 volts
Zero-Signal Plate Current ... 65 ma
Max.-Signal Plate Current ... 130 ma
Effective Load Resistance ... 4000 ohms
Total Harmonic Distortion ... 4.4 %
Max.-Signal Power Output ... 13.3 watts

PUSH-PULL AF POWER AMPLIFIER - Class AB2 (2 tubes)
Maximum Ratings: PLATE VOLTAGE 400 max / GRID-No.2 400 max / GRID-No.2 INPUT 3 max W / PLATE DISSIPATION 23 max W
Plate Voltage ... 360 / 360 volts
Grid-No.2 Voltage ... 225 / 270 volts
Grid-No.1 Voltage ... -18 / -22.5 volts
Peak AF G1-to-G1 Voltage ... 52 / 72 volts
Zero-Signal Plate Current ... 78 / 88 ma

===== PAGE 5 =====
(continuation Class AB2)
Max.-Signal Plate Current ... 142 / 205 ma
Zero-Signal Grid-No.2 Current ... 3.5 / 5 ma
Max.-Signal Grid-No.2 Current ... 11 / 16 ma
Effective Load Resistance (Plate to plate) ... 6000 / 3800 ohms
Total Harmonic Distortion ... 2 / 2 %
Max.-Signal Power Output ... 31 / 47 watts
Maximum Circuit Values: Grid-No.1 resistance fixed-bias 0.1 max megohm; cathode-bias Not recommended
"Curves shown under Types 6L6, 6L6-G also apply to the 5881"
Mechanical drawing: T11 BULB, 1-7/16" max dia, 2-29/32" max, 3-15/32" max, Short Intermediate-Shell Octal 7-Pin Base JETEC No.B7-59
[courbes seules — pas de données tabulaires pour le dessin mécanique]