Box courtesy of Larry Stephens

Perma-Test was a re-brander, possibly even a wash house. There was also a similar looking red box. Tube writing was usually blue or white. The ones I have are actually kind of neat looking. A simple, but neatly printed Perma-Test in dark blue. Perma-Test does have a rather interesting connection.
See below.

The Perma-Test logo (shown on left) was registered to The Sampson Company of Chicago, Ill. I believe they were a descendant of MASCO (Mark Alan Sampson Co.) manufacturer or private labeler of amps and radios in the 40's. In the early 1960's Sampson was the exclusive importer and sales rep for Hitachi Electronic Products. Even the Hitachi tube boxes of that era listed "The Sampson Company" - see Hitachi page. Additionally, they supplied tubes in boxes marked Sampson - see Sampson page. The SAMCO logo on the right appears on all three brands in one form or another (not all Hitachi boxes).

Related Links:

  • Hitachi
  • Sampson

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