The drawings reveal early Moog prototypes, modules, circuits and more.

Teardown videos on YouTube might go under the hood of synths to show us how they work, but the don’t offer much insight into the design process. The Bob Moog Foundation however has just shared a collection of hand-drawn schematics spanning an 18-year period from 1964-1982, showing developments in the evolution of the company’s synthesisers, designs for one-off commissions, filter circuitry and modules.

Some of the drawings are the work of Bob Moog himself, but there’s also a drawing from German synthesiser pioneer Harald Bode and several from unnamed draughtspeople. You can view a few below, but you can head the the Bob Moog Foundation website to check out more. [via Sonic State]