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Components

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  1N34A Germanium Diode

  1N34A Germanium Diode

  
  

  $0.75
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  SR Latch Chip: 74LS279

  SR Latch Chip with four Set-Reset Logic Gates inside. 16 Pin DIP package.

  
  

  $1.49
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  1/4" (6.35mm) Stereo PCB Mount...

  Solder this 1/4" Female Stereo PCB Mount Audio Jack into your circuits to get easy audio input. Gold plated for high sound quality.

  
  

  $2.99
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  DS1307 Real Time Clock (RTC): I2C

  This I2C real time clock module keeps track of the time even when your projects are powered off! Takes one CR2032 coin cell battery. Uses I2C protocol so it can be chained with other I2C devices.

  
  

  $7.49
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  74LS47 BCD to 7 Segment...

  74LS47 BCD to 7 Segment Decoder / Encoder

  
  

  $1.49
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  CD4081BE Quad 2-input AND Gate

  This chip contains 4 AND gates with 2 inputs each.

  
  

  $1.49
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  NAND Gate CD4093BE

  Quad 2 input NAND Schmitt Triggers. CMOS NAND Gate chip with 4 2-input NAND gates inside.

  
  

  $1.49
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  74HC138 3 to 8 Decoder/Encoder

  3 to 8 Line Decoder / Encoder

  
  

  $1.49
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  22K Ohm Linear Potentiometer

  22K Linear Potentiometer 2W 5% Single Turn

  
  

  $3.99
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  Momentary 16mm Button LED Blue

  Metal 16mm diameter button that's on while you hold it and off as soon as you let go. Momentary with blue led ring illumination.

  
  

  $7.99
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  MT8870 DTMF Decoder Receiver

  Dual Tone Multiple Frequency Receiver chip MT8870.

  
  

  $2.49
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  HM9270 DTMF Receiver

  Dual Tone Multiple Frequency Receiver chip HM9270.

  
  

  $5.99
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