The Heathkit IG-18 Sine-Square Audio Generator

In this video, we'll take a look at a piece of vintage Heathkit test
equipment, the IG-18 Sine-Square Audio Generator. I'll discuss the
history and features of the instrument, and we'll look at the front
panel controls and inside circuitry. I'll discuss the restoration of
this particular unit, and say something about the circuit design it
used. We'll see a demonstration of the generator in operation, and
then wrap things up with a summary.

Видео The Heathkit IG-18 Sine-Square Audio Generator канала Jeff Tranter