LM3915 10 LED Sound Audio Spectrum Analyzer Level Indicator Kit 

Hobby Project Box 2 x 3.25 inches

  with PC board, screws   

The output voltage range of the LM317 is 1.25V-37V (the design output voltage range of this kit is 1.25V-12V), and the load current is up to 1.5A. Its use is very simple, only two external resistors are needed to set the output voltage. In...

Features Ding dong doorbell switch s1 is push button switch on the door, without press the switch, the capacitance cannot be connected is not recharged, and capacitance voltage of v, the reset has been in a low level condition, leading to the...

Description A mini 15Wx2 board designed with TDA7297 Features - Designed with TDA7297 - Very small size - Single 12V power supply - 15W x 2 max output power