Name: | Trio-Tron, Audio Supply Co.; Farrell, PA (USA) |
Abbreviation: | trio-tron |
Products: | Brand |
Summary: |
Audio Supply Co. Tube brand: Trio-Tron A tube box for this brand has been located. The company is not listed in Tyne's "Saga of the Vacuum Tube". |
History: |
This manufacturer was suggested by Fin Stewart.
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