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PL81 Power Pentode Tungsram Vacuum Electronic Tube AF RF SW Amplifier Oscillator

This is an original, Tungsram PL81 Power Pentode electronic tube. Nearest good subtitute is the Brimar 21A6 or a PL820. This tube is designed for RF [Radio Frequency] and AF [Audio Frequency] amplifier use. Excellent part for replacement, antique radio, instrument or television restoration, circuit research, Short Wave radio or experimentation. It is a NOS - New Old Stock tube - without box, excellent condition.
PL81 Power Pentode Tungsram AF RF SW Amplifier Oscillator Vacuum Electronic Tube [13 KB]


Power Pentode - Excellent for Transmitters
DC & AF Amplifier, Oscillator
MFG: Tungsram - High quality Made in Hungary
Heater: 21.5 V, 0.3 A Substitute: 21A6, PL820
Va(peak): 7 kV - 18 uSec pulse - Ik: 180mAmax
Plate: 250 Vmax - 8 Wmax G2: - 4.5 Wmax
Base: 9-pin all glass noval


NOS - [New Old Stock] tube Without box
Unused - Price: $40 - One available
S/H included within continental US
PL81 Noval 9-Pin Miniature All Glass Vacuum Electronic Tube Electrode Connections
PIN # 1 2 3 4 5 6 7 8 9 Cap
Electrode I.C. Grid-1 Cathode Heater Heater I.C. I.C. Grid-2 Grid-3 Anode
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