Delayed Modulation

MFOS DELAYED MODULATION PCB WITH DIY PANEL

http://musicfromouterspace.com/analogsynth_new/DELAYEDMODULATION/DELAYEDMODULATION.php

from the website :
this module includes an Attack Release envelope generator, Low Frequency Oscillator with square and sine waveforms, and a Voltage Controlled Amplifier. These separate elements are connected in the classic delayed modulation patch such that the LFO is fed to the input of the VCA and the AR generator is connected to the VCA's control input.

When you apply a gate to the circuit the AR generator is gated on and the VCA responds to the applied envelope and the LFO comes through the VCA. You use the output of the module to modulate other voltage controlled modules. Since there is a complete AR generator built into the module you have some nice flexibility. You can do the usual slow increase in modulation or you can do the opposite meaning use a fast attack and slow delay so that the modulation starts high and goes low.

http://musicfromouterspace.com/analogsynth_new/DELAYEDMODULATION/DELAYEDMODULATION.php