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NE555 Pulse Square Wave Signal Generator

Adjustable Duty Cycle and Frequency

Item No Longer Available - See Replacement: NE555 Adjustable Square Wave Signal Generator

Do-It-Yourself kit which you assemble. Excellent starter kit for the experimenter to add a piece of test equipment to your bench. Assembly in less than one hour.

Create a Frequency and Duty Cycle adjustable timer module with all included components.


Input Voltage: 5V-15VDC
Output Amplitude: 4.2V V-PP to 11.4V V-PP (Dependant on supply voltage)
Output Ranges:

  1. 1Hz ~ 50Hz
  2. 50Hz ~ 1kHz
  3. 1KHz ~ 10kHz
  4. 10kHz ~ 200kHz

Assembly Overview With Included Parts:

NE555 Pulse Generator Kit Parts Placement

Included Parts:
C1, C2:
0.1uF Capacitor (device marked with 104)
C3: 0.001uF Capacitor (device marked with 102)
C4, C5: 100uF Electrolytic Capacitor (device is polarity sensitive)
C6: 1uF Electrolytic Capacitor (device is polarity sensitive)
D1: Red LED (device is polarity sensitive)
R1: 1.5K ohm Resistor (brown-green-red-gold)
VR1, VR2: 10K ohm Variable Resistors
NE555: 8-Pin IC socket and NE555 Timer Chip
Header 3-Pin: For Power Input and Output
Header 8-Pin: For Frequency Adjustment (use included jumper)

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NE555 Pulse Generator Kit

Adjustable Frequency and Duty Cycle
  • Product Code: NE555 Timer Kit
  • Availability: Discontinued
  • $1.15 USD

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