3S4T Power Pentode Miniature Discontinued Tungsram Electron Vacuum Tube

This is a genuine, vintage, collectiblediscontinued 3S4T Tungsram Power Pentode battery operated, discontinued, electron tube in it's original box. Developed for Class A amplifier use in receivers, transmitters and instruments. This exceptional tube is capable for full operation while using only 25 mA current from the filament battery! Useful for replacement, antique radio restoration projects, circuit research, experimentation or to set up a private vacuum tube museum. It is NOS tube - New Old Stock, unused, boxed, in mint condition. First come first serve, only one of this rare, discontinued, historical vacuum tube available!

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HARD TO FIND ORIGINAL HISTORICAL TUBE Features: • 3S4T Power Pentode Radiotron Tube • MFG: Tungsram • Quality Made in Hungary • Class A amplifier, Oscillator • Heater: 1.4/2.8 V, 50/25 mA • Plate Voltage: 90 Vmax - Class A • Plate: 5 mAmax, 0.6 Wmax - Class A • Base: 7-pin miniature • Rare Collectible Notes: • NOS - [New Old Stock] tube • Original box • Unused • Price: $100 • 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