OddMix VACUUM TUBE - PL81 |
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.
Features: • 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 Notes: • 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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