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Eckstein Bros. Model 390
Eckstein Bros. Model 390

Eckstein Bros. Model 390

$ 39.59

Availability: 70 in stock
  • Model: Eckstein Bros. 390
  • Condition: Used

    Description

    Eckstein model 390 hearing tester. I do not know much about it. When tested it would change tone pitches with the dial, and increase/decrease volume with the other dial. No further testing was done and don't know if it works properly or not, but seems that it does. Ships free in the CONUS.