027 Heathkit Pre-Amplifiers Models UMC-1 & USC-1 Part 1 (EF86 x 2, ECC83)

This video is our own Vintage Audio Workshop production and is an introduction to the Heathkit audio valve pre-amplifiers models UMC-1 & USC-1 covering Phono EQ, Baxandall Tone Circuits and Filters.

We will follow up with more on this subject in our part 2 video covering pre-amplifiers. Hope you enjoy!