Designed to function in harsh shock, vibration, and high temperature conditions. New old stock * No longer available for export. MFR: Sylvania SKU: 5641
Designed to function as a half wave rectifier in photoflash circuits as it has a low filament voltage. New old stock * No longer available for export. MFR: Tung Sol SKU: 5517
Designed to operate as either a full wave, voltage doubler, or half wave rectifier as it has two separate sections. New old stock * No longer available for export. MFR: RCA, Sylvania SKU: 117Z6