More Fun From EHX - Nano Muff and Memory Boy
Two fun repairs on some gear from Electro-Harmonix. The Nano Muff sounded great when engaged, but wouldn't pass clean signal at all. It's usually the other way around, right? A quick re-solder to the switch and a new ribbon connector got things sorted out right away. Mmmmm...fuzzy!
The Memory Boy was a little more tricky. There are seven small trim pots inside that fine tune the various controls and set the bias for the four BBD chips. There are pages upon pages in the EHX forums that specifically tell you NOT TO MESS WITH THE TRIM POTS.... EVER! Well, the previous owner did exactly that. The only solution offered by EHX is to mail your pedal back to the factory so they can recalibrate it using their secret recipe. I figured that in the time it would take to ship the pedal I could just figure it out. How hard could it be? The answer is: hard. Or at least not fun. It took a few hours with the oscilloscope to figure out what the plan was, but now it's all back to normal. And I learned something new!
Both of these will be for sale on my Reverb store shorty if you have a hankering for some fuzzed out delay.