1
/
of
1
Electronic Enterprises inc JAN-CDZ-866/A
Electronic Enterprises inc JAN-CDZ-866/A
Regular price
R 450.00 ZAR
Regular price
Sale price
R 450.00 ZAR
Shipping calculated at checkout.
Low stock: 1 left
Key Characteristics & Specifications
- Type: Half-wave mercury-vapor rectifier (often interchangeable or cross-referenced with standard 866A/866 power supply tubes). [1]
- Manufacturer: Electronic Enterprises, Inc. (Newark, New Jersey). [1, 2]
- Military Designation: JAN-CDZ-866/A (VT-46-A), built to U.S. Army and U.S. Navy standards during the mid-20th century. [1]
- Base: 4-pin UX-style base with a top-cap anode connection. [1, 2]
- Primary Application: High-voltage power supplies, radio transmitters, and vintage amateur/military radio gear. [1]
Operational Guidelines for Mercury-Vapor Tubes
- Orientation: Mercury-vapor tubes like the 866/866A must be operated vertically with the base down so the pool of liquid mercury settles properly at the bottom of the envelope. [1]
- Filament Warm-Up: When first powering up a cold mercury-vapor valve, you must allow adequate pre-heating time (typically 30 seconds to a minute) for the mercury to vaporize before applying high voltage, otherwise internal arc-over or cathode damage can occur.
- Substitutes: In many modern or modified vintage circuits, solid-state plug-in replacements or ruggedized xenon-filled tubes (such as the 3B28) are used as substitutes, though 3B28 can be operated in any position. [1, 2]
| Feature / Attribute | Details |
|---|---|
| Manufacturer | Electronic Enterprises, Inc. |
| Tube Type | Half-Wave Mercury-Vapor Rectifier (866/866A equivalent) |
| Military Standard | JAN-CDZ-866/A / VT-46-A |
| Base Type | 4-Pin UX Base + Top Cap Anode |
| Common Uses | Vintage Military Transmitters & High-Voltage Power Supplies |
Product features
Product features
Materials and care
Materials and care
Merchandising tips
Merchandising tips
Share
