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.

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HARD TO FIND - EUROPEAN VACUUM TUBE Features: • 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 Notes: • NOS - New Old Stock tube • Without box • Unused - Price: $30 - One available • S/H included within continental US

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