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ElectronTubeStore.com
6 RCA 0Z4 OZ4 Vacuum Tubes Valves NOS NIB Lot of Six - Etsy
0Z4 TUBE -Experience Pure Analog Sound with our Premium Vacuum Tube for High-Fidelity Audio Systems – Big River Hardware
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True NOS NIB Matched Quad (4) GE USA 0Z4 [OZ4] Metal Vacuum Tubes 100+% - VIVA TUBES
0Z4 Full Wave Rectifier Tube. Designed to operate as a rectifier with no heater supply voltage. MFR: RCA, GE, Lifetime, Philco, Sylvania SKU:0Z4. New old stock. No longer available for export.
Oddball Mercury Vapor Rectifier Is A Tube Geek's Delight | Hackaday
Electronics 27
True NOS NIB Matched Sleeve (5) GE USA 0Z4 [OZ4] Metal Vacuum Tubes 100+% - VIVA TUBES
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Sylvania 0Z4 Vintage Metal Vacuum Tube Tested sku#271 | eBay
Assorted Brands 0Z4 Vacuum Tubes Untested Used Lot Of 4 | eBay
Vacuum Tube - 0Z4-A, Rectifier, Full Wave, Gas | Antique Electronic Supply
0Z4 Full-Wave High Voltage Gas Rectifier Electronic Sylvania Metal Vacuum Tube
Sylvania Vacuum Tube 0Z4 | Best Parts Store
CORONADO 0Z4 Vacuum Tube Full Wave Power Rectifier METAL | eBay