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Brimar 5V4G (CV729 or GZ32) NOS with boxes
Brimar 5V4G (CV729 or GZ32) NOS with boxes
Regular price
R 1,350.00 ZAR
Regular price
Sale price
R 1,350.00 ZAR
Shipping calculated at checkout.
Low stock: 4 left
Key Characteristics & Specifications
- Tube Type: Indirectly heated full-wave rectifier [1]
- Heater Voltage / Current: 5.0 V, 2.0 A [1]
- Peak Inverse Voltage: 1,400 V max [1]
- Peak Current (each anode): 525 mA max [1]
- Common Equivalents: GZ32, 52KU, CV593, CV1863, and functionally related to/swapped with select types like the 5Z4G (with lower internal impedance and higher output current). [1, 2]
- Audio Characteristics: On audio forums like Head-Fi, users note that the Brimar 5V4G/5Z4G imparts a warm presentation with extended bass response, though it can have a slightly higher vulnerability to power supply hiss or ripple compared to harder-transition rectifiers. It features a moderately slow warm-up due to its indirect heating, which protects sensitive filter capacitors from instant high-voltage spikes. [1, 2]
Comparison of Brimar Rectifier & Related Types
| Tube Model | Heater (V / A) | Common Designations / Equivalents | Typical Construction / Notes |
|---|---|---|---|
| Brimar 5V4G / CV729 | 5.0V / 2.0A | GZ32, CV593, 52KU | Indirectly heated, ST-glass or metal-base variants, gray/black holed plates with halo or D-getters. |
| Brimar 5Z4G | 5.0V / 2.0A | CV1863, 5Z4 | Directly/indirectly related full-wave rectifier; lower output current capacity compared to the 5V4G. |
| Brimar 5R4GY | 5.0V / 2.0A | CV717, 5R4 series | High-voltage full-wave rectifier with a higher voltage drop and distinct construction (often black plate, brown base, triple-mica or hanging filament variants). |
Product features
Product features
Materials and care
Materials and care
Merchandising tips
Merchandising tips
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