2D21 Thytron Vacuum Tube. Designed to be used in relay and grid-controlled rectifier applications. MFR: RCA, Westinghouse, Sylvania, GE, Tung Sol, National. SKU: 2D21. New old stock. No longer available for export.
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Thyratron Tube 2d21 / 5727 at best price in Delhi by Adlabs Instruments | ID: 2850439768573