4BZ7 Medium-Mu Twin Triode RF Amplifier RCA Radiotron Electron Vacuum Tube

This is a genuine, vintage RCA Radiotron 4BZ7 Medium-Mu Twin Triode electron tube in it's original box. A collector's special vacuum tube. This tube was developed for direct-coupled cathode-drive and push-pull direct-coupled cathode-drive RF amplifiers. It has high enough maximum frequency to allow it's use in television tuners in the VHF range. Also a good general purpose dual triode replacement. It is new, unused, boxed, excellent condition. Useful for those antique radio restoration projects, experimentation, circuit research or to set up a private vacuum tube museum. First come first serve, only one of this rare historical vacuum tube available!

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HARD TO FIND ORIGINAL HISTORICAL TUBE Features: • 4BZ7 Medium-Mu Twin Triode • MFG: RCA Radiotron • Quality Made in USA • RF, AF Amplifier, Oscillator • Heater: 4.2 V, 0.6 A • Plate: 250 Vmax, 20 mAmax, 2 Wmax • Base: 9-pin noval, all glass • Collectible Notes: • NOS - New Old Stock tube • Original box • Unused • Price: $15 • 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