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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!
12SR7 Twin-Diode, Medium-Mu Triode RCA Radiotron Metal Electron Tube [10 KB]


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


NOS - [New Old Stock] tube Original box
Unused - Price: $50 - One available
S/H included within continental US
12SR7 Octal 8-Pin All Glass Electronic Vacuum Tube Electrode Connections
PIN # 1 2 3 4 5 6 7 8
Electrodes Shield Grid T Cathode Anode D2 Anode D1 Anode T Heater Heater
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