MB502

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BASIC ELECTRONIC EXPERIMENT

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1.LED FLASHER 2 DOT

This flasher circuit is a fundamental circuit suitable for those who are interested in studying electronics as well as its performances. It is a low-cost product composed of few components: two alternate LED flashers of which flash frequencies are adjustable.

TECHNICAL DATA

  • Power supply : 9-12VDC.
  • Electric current consumption : 16-22mA (max.)
  • Flash frequency is adjustable with a horseshoe.
  • IC board dimension : 1.39 in x 1.22 in

2.6 ALARM SOUND SIREN

The six digitized alarm sounds of the FK278 are held permanently in a masked Read Only Memory (ROM) in a decoder IC. A transistor output amplifier drives the supplied 8 ohm 0.25W speaker for a demanding sound suitable for toys and novelty applications.

TECHNICAL DATA

  • Power supply : 3VDC.
  • Electric current consumption : 105mA. (max.)
  • IC board dimension : 1.13 in x 1.00 in.

 

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