4040A BK Precision Function Generator

The 4040A is a 20 MHz function generator from BK Precision.


  • Frequency range: 0.2 Hz to 20 MHz
  • Sine, Square, Triangle, Pulse, & Ramp output
  • Coarse and Fine tuning
  • AM & FM modulation
  • Burst operation
  • External frequency counter to 30 MHz
  • Linear and log sweep
  • Variable duty cycle
  • Variable DC offset
  • cUL Certified

The BK Precision 4040A 20 MHz Sweep Function Generator is a versatile signal source which combines several functions into one unit;­ waveform generation, pulse generation (through variable symmetry), frequency sweep. The BK Precision 4040A has a five-digit frequency counter that displays the generator output frequency or external signals from 5 to 30 MHz.

The BK Precision 4040A has a vast number of applications in both analog and digital electronics in the engineering, manufacturing, servicing, educational, and hobbyist fields. 

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