0B2
0B2 has no equivalent designation confirmed by the archive. Completed sales put the typical price at $9.47 per tube.
What 0B2 Sells For
| Measure | Per tube |
|---|---|
| Median | $9.47 |
| Typical range (25th–75th) | $5.46 – $10.78 |
| Most sales (10th–90th) | $2.47 – $16.00 |
| Extremes incl. outliers | $1.63 – $48.80 |
| Completed sales | 29 |
By Brand
| Brand | Median | Range | Sales |
|---|---|---|---|
| RCA | $10.78 | $9.47 – $10.90 | 11 |
By Condition
| Condition | Median | Sales |
|---|---|---|
| NOS | $9.78 | 21 |
| used | $6.37 | 6 |
Per-tube prices from completed sales, 2026-08-07 to 2026-10-29. Matched pairs and quads are divided out. See the price index for how these move over time.
Datasheets
Original manufacturer datasheets for 0B2, hosted by Frank Philipse's Electron Tube Data sheets.
| Manufacturer | Designation | Datasheet |
|---|---|---|
| Philips | 0B2 | PDF (307 KB) |
| Mazda-Belvu | 0B2 | PDF (238 KB) |
| Tung-Sol | 0B2 | PDF (205 KB) |
| RCA (RC30) | 0B2 | PDF (158 KB) |
| Amperex | 0B2 | PDF (67 KB) |
| RCA (HB3) | 0B2 | PDF (51 KB) |
| EEV | 0B2 | PDF (33 KB) |
In the Archive
Documents held here and used to write this page.
- OB 2
4 further designations appear alongside 0B2 in the literature but below the evidence threshold used here, so they are not listed as equivalent.