Vacuum tube comparison and substitution reference data in one place. The working nested dropdowns remain intact; use the left sidebar to jump to a section.
Recommended workflow: choose a browse mode, narrow by category, optionally search by model or alias, then compare two tubes side by side. The controls are organized around your three grouping strategies: physical base type, functional application, and logical equivalent group.
The current embedded dataset is mostly tube-family level rather than brand-specific SKU data, so the Manufacturer / Brand tier is preserved in the interface and currently resolves to a generic placeholder when brand-specific rows are not available.
Each side uses the same nested filter structure: browse mode → category → model → manufacturer / brand. Search narrows the model list by name or alias.
Tube A
ReferenceTube B
CandidateGrouping guide
The “Base Type” grouping
Best when physical socket fit is the first question.
The “Application” grouping
Best when you want a tube to solve a specific circuit job.
The “Equivalent Group” grouping
Best when you want family-level equivalence, such as 12AX7 / ECC83 / 7025, before drilling into brand and variant.
In this revision, the equivalent group is exposed as a top-level browse mode and each record preserves its alias family string.
Dataset notes
Total dataset records
0 tube records are embedded in this revision.
Application buckets
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Base buckets
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Manufacturer-level dropdowns are preserved even though most embedded rows are generic family records rather than individual production runs. That keeps the UI aligned with your preferred hierarchy while remaining honest about the current data granularity.