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ME1400 Mullard Electrometer Pentode Vacuum Tube High Input Resistance

This is an original ME1400 Mullard Electrometer Pentode replacement tube originally selected for lowest grid current with an external red additional shield. A rare, hard to find, classic octal tube. It is useful in many older instruments, pH meters, photocell units, special circuits, VTVMs, old time receivers, transmitters and transcievers. Useful for antique radio, instrument restoration projects or to set up a private vacuum tube museum.
ME1400 Mullard Electrometer Pentode High Input Resistance Vacuum Tube [8 KB]
HISTORICAL TECHNICAL COLLECTIBLE

Features:

ME1400 Mullard Electrometer Tube
High quality Made in England
Low grid current selection
Filament: 4.5 V 5%, 160 mA
Plate: 90 VDCmax Cathode: 1 mAmax
Base: 8-pin Octal Discontinued Collectible Tube

Notes:

Unused Price: $15 One available Without box
S/H included within continental US
ME1400 Octal 8-Pin Vacuum Electronic Tube Electrode Connections
PIN # 1 2 3 4 5 6 7 8 Cap
Electrode Shield Heater Anode Grid-2 Grid-3 IC Heater Cathode Grid-1
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