Astable multivibrator using 555. Circuit and explanation.

Package includes :

  • PCB
  • 555 timer IC
  • 10 Micro Farad capacitor
  • 0.01 Micro Farad capacitor
  • 10K resistor
  • 1K resistor
  • 1M POT
  • LED

Assemble the circuit as shown below. Leave POT1 and R2 unconnected. POT1 is parallel to R1 and POT2 is parallel to R2. Only one from each set need to be connected.

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Voltage Regulator using 7805. Circuit and explanation.

Most of the TTL ICs are working on 5V. Many methods are there to design a 5V stabilizer circuit. Here, we are introducing a simple DIY board by which even the starters could easily design a 5V regulated voltage supply.

Components required

  • Printed Circuit Board – 1
  • 7805 voltage regulator IC – 1
  • Screw terminal 5mm – 2
  • 0.33 micro Farad capacitor –
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