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EH81 Heptode Tungsram Vacuum Electron Tube Mixer Amplifier

This is a rare, original, Tungsram EH81 Heptode electron tube. This tube was made for a very short time toward the end of the tube era. It is useable in television and radio, SW, FM receivers as limiter and for an audio pre-amplifier. It's five grids within it's glass container is certainly a rarity. An RF-AF hexode is useable for many circuits, oscillators and multiple input pre-amplifiers. Excellent for antique radio or TV [television] restoration projects, instruments or to set up a private vacuum tube museum. It is a NOS tube - New Old Stock, unused, excellent condition.
EH81 Heptode Mixer Amplifier Tungsram Vacuum Electron Tube [13 KB]


EH81 Heptode
MFG: Tungsram - Quality Made in Hungary
RF Oscillator, Mixer, Amplifier, Limiter
Heater: 6.3 V, 200 mA
Plate: 250 Vmax, 6 mAmax, 1.2 Wmax
Base: 9-pin noval, all glass


NOS - New Old Stock tube Original box
Unused - Price: $40 - One available
S/H included within continental US
EH81 Noval 9-Pin Miniature All Glass Vacuum Electronic Tube Electrode Connections
PIN # 1 2 3 4 5 6 7 8 9
Electrodes Grid-3 Grid-4 Grid-2 Heater Heater Grid-1 Cath G5 - Anode
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