Videobending Utility Functions

I’ve used the spare half of the Down The Bar case to house some utility functions that are useful for getting effects on video bends.

The functions are:

• Two voltage controlled amplifiers based on this design
• Sum/difference amplifier for the output of the two VCAs
• Schmitt trigger with controllable threshold and hysteresis
• Analog meters to show the DC level and AC level of the output from the sum/difference amp
  Two 555-based LFOs

With all this to hand the you can create a lot richer effects, and the LFOs allow some “hands free” dynamic effects.

Video Bending Utility Functions