"I think Heathkit is available."
You mean the name Heathkit is available, the last Heathkit product I bought was 20 years ago.
We've got a whole generation of kids who know nothing about electronic inerds.
Electronic innards are no fun anymore, though. It's all hidden in some cheap chip that usually performs nowhere near the level of the discrete circuits of the past. And those were fun to poke at and fix if there were problems. Now you just throw the item out and buy a new one if it breaks.
I used to help my Dad put his Heathkit gear together about 30-40(?) years ago.
And it sits in my attic as we speak. :-)