4BQ7A Medium-Mu Twin Triode RF Amplifier Miniature Sylvania Electronic Vacuum Tube

This is an original Sylvania 4BQ7A Medium-Mu Twin Triode electronic tube. Typical use include direct-coupled cathode-drive IF amplifiers or television VHF tuner amplifiers. This tube also excels in push-pull cathode-drive RF amplifiers. Useful for replacement, antique radio, instrument restoration projects, circuit research, experimentation or to set up a private vacuum tube museum. It is new, unused, boxed, excellent condition.

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HARD TO FIND ORIGINAL HISTORICAL TUBE Features: • 4BQ7A Medium-Mu Twin Triode • MFG: Sylvania • Quality Made in USA • RF Amplifier, Oscillator • Heater: 4.2 V, 0.6 A • Plate: 250 Vmax, 2 Wmax - Class A Each • Base: 9-pin miniature • Rare Collectible Notes: • NOS - New Old Stock tube • Original box • Unused • Price: $12 • One available • S/H included within continental US

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• Only one item available unless otherwise indicated • Click the credit card pictures left to order • • E-Mails always answered unless return e-mail is blocked