5R4WGB
5R4WGB has no equivalent designation confirmed by the archive. Completed sales put the typical price at $25.90 per tube.
The 5R4WGB is a full-wave rectifier tube of ruggedized, long-life construction, intended for applications demanding high reliability.
Construction
The 5R4WGB is similar in construction to the 5R4WGA but is subjected to more exacting manufacturing requirements. It features a hard glass T-16 bulb and a special skirted 5-pin octal base made of glass-filled alkyd with an insulation zone of 5 or better. The bulb is shock-mounted in the base by resilient silicone rubber, and the base permits operation at high altitudes without flashover. A cross press stem keeps electrolysis to a minimum. The tube is made in lots, with an entire lot rejected if sample tubes fail inspection.
Ratings and Operation
The filament requires 5.0 volts at 2.0 amperes and may be operated on AC or DC. It is a low-drain, fast-heating, rugged filament. The tube is normally operated in a vertical mounting position, but may be operated horizontally if pins 1 and 4 are in a vertical plane.
Physical Characteristics
Maximum overall height is 5.31 inches, maximum seated height is 4.75 inches, and maximum diameter is 2.06 inches.
| Measure | Per tube |
|---|---|
| Median | $25.90 |
| Typical range (25th–75th) | $17.22 – $34.99 |
| Most sales (10th–90th) | $9.30 – $68.86 |
| Extremes incl. outliers | $8.94 – $69.89 |
| Completed sales | 18 |
| Brand | Median | Range | Sales |
|---|---|---|---|
| Raytheon | $10.70 | $9.30 – $17.22 | 5 |
| Chatham | $31.49 | $28.00 – $42.75 | 4 |
| Condition | Median | Sales |
|---|---|---|
| NOS | $25.00 | 7 |
| used | $23.98 | 10 |
Per-tube prices from completed sales, 2026-02-28 to 2026-09-15. Matched pairs and quads are divided out. See the price index for how these move over time.
Original manufacturer datasheets for 5R4WGB, hosted by Frank Philipse's Electron Tube Data sheets.
| Manufacturer | Designation | Datasheet |
|---|---|---|
| Tung-Sol | 5R4WGB | PDF (242 KB) |
Documents held here and used to write this page.
- FULL WAVE RECTIFIER