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4EH7 Semiremote Cutoff Pentode RF Amplifier Sylvania Zenith Vacuum Tube

This is an original Sylvania made for Zenith 4EH7/EF183 Semiremote Cutoff Pentode electronic vacuum tube. This nine pin, all glass, miniature type used as RF or IF amplifier, usually in class-A configuration in many instruments, radio and television (TV) receivers. Excellent part for antique radio or television restoration, experimentation, circuit research or for rare tube collection. It is an NOS [New Old Stock] tube with box, unused.
4EH7/EF183 Semiremote Cutoff Pentode RF Amplifier Sylvania Zenith Vacuum Tube [12 KB]


4EH7/EF183 Semiremote Cutoff Pentode
MFG: Sylvania Quality Made in USA
RF, AF Amplifier, Oscillator
Heater: 4.4 V, 0.45 A
Plate: 250 Vmax, 12 mAmax, 2.5 Wmax
Base: 9-pin noval, all glass Collectible


NOS - New Old Stock tube Original box
Unused Price: $15 One available
S/H included within continental US
4EH7 Noval 9-Pin Miniature All Glass Electronic Vacuum Tube Electrode Connections
PIN # 1 2 3 4 5 6 7 8 9
Electrode Cathode Grid 1 Cathode Heater Heater Int Shield Anode Grid 2 Grid 3
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