The CV378 (GZ37 equivalent) full-wave rectifier tube is widely regarded by tube audio connoisseurs for its robust construction, exceptionally reliable power conversion, and clean voltage output in high-end amplifier power supplies. Value Electronic offerings are sought after by technicians, builders, and restoration enthusiasts seeking specialized classic tube stock. Securing a complete 5-piece lot with their original packaging presents a fantastic opportunity for DIY builders, restoration projects, or maintaining reserve inventory for vintage audio gear.
These vacuum tubes have been given a basic power check, and the filaments were confirmed to light up when energized. No further testing, including operational performance, emission, or audio output, has been performed. As a result, they are being sold as-is. The original boxes are included and show minor storage and shelf wear consistent with age. Please review all photos carefully for the overall cosmetic condition and included contents before purchasing.
| Brand / Distributor | Value Electronic |
| Tube Type / Model | CV378 (Rectifier Tube / GZ37 Cross-Ref) |
| Quantity | 5 Tubes (Set Lot) |
| Base / Socket Type | Octal Base (8-Pin) |
| Testing Conducted | Filament Illumination / Powered-Glow Only |
| Packaging | Original Retail Packaging Boxes Included |
| Dimensions (Per Tube Box) | Approx. 1.77 x 1.77 x 4.92 inches (45 x 45 x 125 mm) |
| Total Package Mass | Approx. 1.10 lbs (500 g) |