How to Identify LFO

[ethniccheese]

I'm trying to mod several of my pedals to have an LED pulse with the LFO speed.  I am having a bit of trouble identifying the LFO in the schematics.  In my small stone (tonepad) there are several transistors, but I can't figure out which one (ones?) make up the LFO.  The same goes for my Ibanez FL-301 (tonepad) and my pulsar tremelo (tonepad).  Can anyone help me figure out how to locate an LFO on the schematic??