This article provides examples of GE (KEN-RAD) manufactured tubes.

GE was one of the most prolific tube manufacturers in US history, and many companies sold GE tubes repackaged under their own brand name. The GE factory EIA code number is “188″ and proves GE was the true manufacturer. Here are several examples:

This photograph shows examples of GE/Ken-Rad manufactured tubes with 188 codes. From left-to-right: Magnavox, Zenith, Admiral, Ken-Rad.

It is amusing to read on the Admiral tube “Replace only with a genuine Admiral tube.” Marketing hype at its finest, because there were no Admiral-manufactured tubes. In this example, it was a GE tube.