I am planning to build this, but I can’t find those photoresistors. I have some different models. Do you happen to know what is the resistance of your photoresistors when you put 10mA of current on their LED?
probably 100 ohms…but as long as your LDR’s are matched they will work..you may need to tweak some other values a little…try it and if I can assist I will
Circuit Salad 
Finished mine, and it sounds great! Thanks Ray for another superb pedal design.
You are the “master crammer”…nice color too..you can practically carry your pedals on a key chain!
Here’s my “Ring Collection”
I am planning to build this, but I can’t find those photoresistors. I have some different models. Do you happen to know what is the resistance of your photoresistors when you put 10mA of current on their LED?
probably 100 ohms…but as long as your LDR’s are matched they will work..you may need to tweak some other values a little…try it and if I can assist I will