Conn Strobotuner ST-11

Conn, C.G. Instruments Ltd (Conn-Selmer); Elkhart, IN

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  • Year
  • 1975 ??
perfect model
  • Category
  • Miscellaneous (Other, Various) - see notes
  • Radiomuseum.org ID
  • 259764

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Transistors
  • 15
  • Semiconductors
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 60 Hz, 105-120 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Conn Strobotuner ST-11 - Conn, C.G. Instruments Ltd
  • Shape
  • Tablemodel, with any shape - general.
  • Notes

  • The Conn Strobotuner model ST-11 uses 9 IC-s and 15 transistorsand about 76 diodes and is looking very similar to ST-12. Schematic and range chart uploaded by courtesy of Terry Smythe (mts.net).

    The model ST-11 and ST-12 have a microphone with a cable to take out of the cabinet. On YouTube you find this very well done explanation about the principle of strobe tuners including the Conn Strobotuner. We have to know that for a longer time Strobotuners used radio tubes, like the Strobotuner ST-2, ST-4, Strobotuner ST-6 or St-8 from 1958.

    The first Strobotuner was invented by Conn and called Ctroboconn and came on the market in 1936.

    Joseph Plateau of Belgium is generally credited with the invention of the stroboscope in 1832, when he used a disc with radial slits which he turned while viewing images on a separate rotating wheel. Plateau called his device the "Phenakistoscope". There was a simultaneous and independent invention of the device by the Austrian Simon von Stampfer, which he named the "Stroboscope"

  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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