Vacuum Tube - 5U4GB, Electro-Harmonix
Superior directly heated rectifier Diode. Replacement for all 5U4 types, including NOS-style "big bottle" tubes.
- Straight bottle classic design fits more applications
- Perfect for dual rectifier amps
- Excellent choice for both Hifi and instrument amplification
RoHS Compliant
Accessory Items:
| A.C. Plate Supply Voltage | 550 V | ||
| A.C. Plate Supply Voltage, Capacitor Input Filter | 300 V | ||
| A.C. Plate Supply Voltage, Choke Input Filter | 550 V | ||
| Body Height | 4.063 in. | ||
| Capacitor Input Filter | 40 μF | ||
| D.C. Output Current, Capacitor Input Filter | 300 mA | ||
| D.C.Output Current, Choke Input Filter | 275 mA | ||
| D.C. Output Voltage At Filter Input, Capacitor Input Filter | 290 V | ||
| D.C. Output Voltage At Filter Input, Choke Input Filter | 420 V | ||
| Effective Plate Supply Resistance, Capacitor Input Filter | 21 Ω | ||
| Filament Current (If) | 3 A | ||
| Filament Voltage (Uf) | 5 V | ||
| Filter Input Choke | 10 H | ||
| Item Diameter | 1.563 in. | ||
| Item Height | 4.625 in. | ||
| Peak Inverse Plate Voltage | 1,550 V | ||
| Steady State Peak Plate Current | 1 A | ||
| Transient Peak Plate Current | 4.6 A | ||
| Packaging Dimensions | 1.8 in. × 1.8 in. × 4.8 in. | ||
| Weight (Packaging) | 0.1213 lbs. | ||
 Specification Sheet | All Models |
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Questions? Contact us at [email protected], or give us a call at 480-820-5411
Substitute Products
The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.
Product Reviews
The Electro-Harmonix 5U4GB rectifier tube arrived in a timely manner and was packaged very well. I enjoy doing business with Antique Electronics Supply.
Well balanced rectifier.
This is a great reproduction tube. I prefer it to many of the vintage 5U4s I've tried. It has a more immediate response and a full, strong character that some of the vintage examples lack. In other words it's more powerful than some vintage tubes.
This 5U4GB tube (we call them valves in Australia) has tested well in a vintage Hammarlund communications receiver. Tube looks to be well made and of good quality materials for the base and pins. Have since ordered some more.
Finally ran out of good used 5U4's , and 5U4GB's to stick in repair jobs , so I went with the Russians since I like their power tubes so well. No sparks. That's always a plus!
Unfortunately, This tube had an audible rattle & buzz mechanical noise. Maybe it was a fluke. I didn't risk exchanging for a 2nd and opted to change brands. Thank goodness that Antique Electric Supply is very supportive in quickly processing an exchange.
Great reliable tubes