Up for sale is a rare set of four (4 Pcs) vintage VR78 (CV1114 / D1 equivalent) military detector valves, packaged in clean individual white boxes. These feature authentic British Air Ministry (AM / Broad Arrow) markings etched into the glass (`VR.78 CDE/11540`), produced during WWII for high-frequency military radio equipment, radar units, and precision signal detection circuitry. Outstanding choice for military valve collectors, historic WWII communications restoration projects, and vintage radio equipment.

Technical Details & Overview

• Type: Directly / Indirectly Heated Single Signal Detector Diode (Subminiature design).
• Equivalents / Cross Reference: CV1114, D1, VR78, 10E/11540.
• Origin: Manufactured in Great Britain for WWII Air Ministry (AM) military applications.
• Heater Rating: 6.3V / 0.15A nominal filament supply.
• Condition Note: Sold as UNTESTED New Old Stock (NOS) in original/white box packaging as pictured. Physical visual inspection shows intact filaments, clean glass envelopes, and clear military markings.