Ruby Tubes
Welcome to Ruby Tubes, your go-to source for premium vacuum tubes for amplifiers. Our high-quality tubes are hand-selected to ensure optimal performance and sound quality, giving your amplifier the upgrade it deserves.
Petaluma, US · prices in USD · ships to 190 countries. Catalogue read from rubytubes.com's own public product feed on 2026-08-08. Every figure below is an observation from that feed, not an estimate.
Sales estimate
Derived from stock levels falling between polls, over 2 observed days. Intervals where stock rose, or where a variant sat at the store's inventory ceiling, are discarded rather than counted as zero sales.
| Date | Units sold | Est. revenue | Method | Catalogue read | Discarded |
|---|---|---|---|---|---|
| 2026-09-04 | 0 | not measurable | index only | — | 00 |
| 2026-08-12 | 0 | not measurable | index only | — | 00 |
An estimate, and the page shows what it rests on: which method produced each day, how much of the catalogue could be read, and how many intervals were thrown away. A day marked not measurable is not a day without sales — it is a day we could not defend a number for.
Store facts
Brands carried
Matched on the store's own brand field, so these are exact — not guessed from product names.
Products
Data collected from rubytubes.com's public product feed. Not affiliated with or endorsed by this store. Request removal.