6T8
6T8 has no equivalent designation confirmed by the archive. Completed sales put the typical price at $29.23 per tube.
What 6T8 Sells For
| Measure | Per tube |
|---|---|
| Median | $29.23 |
| Typical range (25th–75th) | $18.04 – $39.50 |
| Most sales (10th–90th) | $16.07 – $39.50 |
| Extremes incl. outliers | $15.95 – $48.90 |
| Completed sales | 13 |
By Brand
| Brand | Median | Range | Sales |
|---|---|---|---|
| Siemens | $18.87 | $17.08 – $29.23 | 3 |
By Condition
| Condition | Median | Sales |
|---|---|---|
| NOS | $19.12 | 8 |
| used | $34.37 | 4 |
Per-tube prices from completed sales, 2026-06-25 to 2026-09-16. Matched pairs and quads are divided out. See the price index for how these move over time.
Datasheets
Original manufacturer datasheets for 6T8, hosted by Frank Philipse's Electron Tube Data sheets.
| Manufacturer | Designation | Datasheet |
|---|---|---|
| General Electric | 6T8 | PDF (389 KB) |
| Tung-Sol | 6T8 | PDF (165 KB) |
| Brimar | 6T8 | PDF (40 KB) |
In the Archive
Documents held here and used to write this page.
- 6T8 — 5T8 — 19T8 TRIPLE-DIODE TRIODE
4 further designations appear alongside 6T8 in the literature but below the evidence threshold used here, so they are not listed as equivalent.