Collection: Prototype Amplifiers

These prototype amplifiers are one-off builds that I use to experiment with different tubes, transformers, chassis, or even just wiring layouts.  Sometimes parts (typically transformers) will be reused from previous prototypes that did not make the cut - this will be disclosed within the listing if applicable.  The are typically unlabeled without finish or faceplates.  All specs will be listed within each listing.

Don't see anything?  Check out the Sold Prototype Amplifiers to get an idea of what I've done in the past.