12SR7 Twin-Diode, Medium-Mu Triode RCA Radiotron Metal Electron Tube

This is a genuine, vintage, no longer made, discontinued type, metal 12SR7 RCA Radiotron Twin Diode, Medium-Mu Triode electron tube. Developed for combined detector, amplifier and avc use in automobile and ac operated receivers. Useful for antique radio restoration projects or to set up a private vacuum tube museum. It is NOS tube - New Old Stock, unused, boxed, excellent condition. First come first serve, as only one of this rare, discontinued, historical vacuum tube available!

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HARD TO FIND - HISTORICAL METAL TUBE Features: • 12SR7 Twin-Diode, Medium-Mu Triode • MFG: RCA Radiotron • Quality Made in USA • Rectifier, Amplifier Audio AF, RF, Oscillator • Heater: 12.6 V, 0.15 A • Plate: 150 Vmax, 9.5 mAmax - Class A • Discontinued Special Collectible Tube • Base: 8-pin octal • Metal Tube Notes: • NOS - [New Old Stock] tube • Original box • Unused - Price: $50 - 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