Articles / Tech and DIY

Channel Road Vacuum Tube Theremin

Vacuum tube theremin by John Polstra

John D Polstra of Channel Road Amplification (Lopez Island, WA) shared with this write-up of a beautiful looking and sounding vacuum tube theremin he constructed.

For the technically savvy, the article contains full schematics of his design along with a description of the circuit & various design choices he made along the way.

To complete the vintage approach, John housed the theremin in 1933 radio cabinet.


Read: A Vacuum Tube Theremin (