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EF89 Variable Transconductance Pentode Valvo Vacuum Electron Tube RF AF Audio

This is an original Valvo EF89 Variable Transconductance Pentode RF electron tube. Substitutes are the EU24, 6DA6 and with different filament voltage the UF89. The EF89 is also a great hi-fi audio pentode. The tube is useable in television and radio, SW, FM receivers as an audio pre-amplifier. An AF pentode is useable for many other circuits, oscillators and amplifiers. Excellent for antique radio or television restoration projects, instruments or to set up a private vacuum tube museum. It is a NOS tube - New Old Stock, unused, excellent condition.
EF89 Variable Transconductance Pentode RF AF Audio Valvo Vacuum Electron Tube [15 KB]


EF89 Variable Transconductance Pentode
MFG: Valvo - Quality Made in Germany
Amplifier, Oscillator RF, AF
Heater: 6.3 V, 200 mA
Plate: 300 Vmax, 2.25 Wmax
Base: 9-pin glass Substitute: EU24, 6DA6, UF89


NOS - New Old Stock tube Without box
Unused - Price: $30 - One available
S/H included within continental US
EF89 Noval 9-Pin Miniature All Glass Vacuum Electronic Tube Electrode Connections
PIN # 1 2 3 4 5 6 7 8 9
Electrodes Shield Grid-1 Cathode Heater Heater Shield Anode Grid-2 Grid-3
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