Hi guys. I also have an early Muff Fuzz that I can’t seem to get working to save my life. I rebuilt it using the previous schematic and replaced the 10k resistor, yet I only get bypass signal. It is another reverse polarity pedal, and it has the 914s and 2n4088s. I disconnected the one corner of the “triangle resistor” group from the switch pin when replacing the capacitor and tested that. That gave me signal and fuzz, but the fuzz was not as loud or gritty as it should’ve been. I also don’t know why connecting it properly erases the signal. This thing is driving me nuts.