Labappara scientific instrument
Export date: Fri Jan 28 12:03:06 2022 / +0000 GMT

Telephone Trainer

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Telephone Trainer

The Telephone Trainer is a complete kit to understand the working of telephone instruments with the idea of working of exchange. The trainer has DIP switches to create the faults in the instruments and test points to give the complete idea about the servicing/working of telephone instrument.  


  • Based on Basic Telephone Instrument Circuits. 
  • 16 Fault creating switches for different sections.
  • Circuit Diagram on board describing different sections in telephone like Line
  • protector, Voltage dropper, Ringer, Dialer, Key matrix, Sound amplifier section etc.
  • Test points to measure the signals in different sections. 
  • Can be use as normal telephone instrument.
  • User's manual with fault finding.


Product added date: 2018-06-30 11:55:52
Product modified date: 2018-06-30 12:05:06

Export date: Fri Jan 28 12:03:06 2022 / +0000 GMT
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