Build Guide - Calibration

The IF102 does not require calibration.

The following steps can be performed to perform a Functional Test

  1. Patch a 10VAC 500Hz saw wave to [SAW IN]
  2. Monitor [OUT]
  3. Set [PULSE WIDTH] to ~’4’, [PULSE POSITION] to ~’8’, [PULSE AMPLITUDE] to ‘0’
  4. Verify pulses are +5V and -5V in amplitude, with ~25% duty cycle for each of the four segments
  5. Vary [PULSE AMPLITUDE] from full ‘0’ to full ‘10’. Verify second pulse amplitude ranges from -5V to +5V, with 0V near midpoint
  6. Set controls: [PULSE WIDTH] to ~’4’, [PULSE POSITION] to ~’8’, [PULSE AMPLITUDE] to ‘0’
  7. Tweak [PULSE WIDTH] and [PULSE POSITION] slightly for good symmetry (25% duty cycle for
    each segment.)
  8. Patch a 'modulation signal' (triangle or sine from an LFO) to [PULSE AMPLITUDE MODULATION]
  9. Verify ~ 0-50% pulse width range
  10. Set [PULSE WIDTH] control for a narrow pulse
  11. Set [PULSE MODULATION] to ~'8'
  12. Patch the 'modulation signal' to [PULSE POSITION MODULATION]
  13. Verify pulse position varies across the full wave cycle
  14. Set [PULSE WIDTH] to ~’4’
  15. Adjust [PULSE AMPLITUDE] for zero amplitude of second pulse
  16. Apply the 'modulation signal' to [PULSE AMPLITUDE MODULATION]
  17. Verify pulse amplitude varies over full +/-5V range.
Email:  elby-designs@bigpond.com
© Copyright 2000. All rights reserved.     Revised: October 16, 2022