SET Preamps

Of course, Al the whole thing is ridiculous. Virtually all preamps are SET. The exception being preamps that use tubes that are combo pentode/triode tubes like the 6U8, 6AN8, etc, and these are as rare as hen's teeth. In fact, one might even call these SET as SET amps that use pentode drivers and SET output stages are still referred to as SET. It would be much harder to name preamps that are not SET, but the Shindo models come to mind as using pentode stages before the final output.

A triode is a triode.

Perhaps you meant to enquire of Directly Heated Triode preamps, a less common kettle of particularly tasty fish...?

We make some of the very few tube preamps that are **not** SET... ye olde Dynaco PAS-3 is SET, as is the Citation 1, many of the earlier ARC preamps, the CAT, the Joule Electra; Al is correct- most tube preamps are 'SET'. The term really is for *amplifiers*, where it creates a distinction, not preamps.

I wasn't sure myself when I asked. I heard the term not long ago for a popular Canadian made preamp.