They cost more, but we have found no current production semiconductors that work.
Every Euthymia pedal uses only top grade silver Teflon wire. Every Euthymia pedal uses a fiberglass printed circuit board for best ruggedness and reliability. Most mass-produced effects use phenolic printed circuit boards, which break easily and are difficult to repair. Every Euthymia pedal is built in a cast aluminum case for maximum ruggedness. Every control and jack on every Euthymia pedal is solidly mounted on the case, and connected to the circuit via silver Teflon wire.