Shorthand method of specifying the values of resistor and capacitor to be used in a frequency correction network by reference to the time taken for the voltage across the capacitor to fall to 37% (approx.) of its original value through the resistor.
"Wow! I didn't think it would work this well! As I listened to the recordings I was very impressed at the quality. It not only kept me from wearing out my records, but it actually improved the original recording!"
