I bought this broken for a few bucks after seeing this band in playing in a basement who had all of these ancient DOD effects with the big switch and appliance-type AC power cable. I thought his flanging sounded great so when I saw this sold as-is at some mom and pop store I bought it. Probably with a pile of other stuff thatw as broken or worthless at the time. I can't remember why I never fixed it. Maybe unavailability of some parts? I'm giving it 3 stars because I have fond memories of this effect even if I haven't heard it in 18 years! I wonder if I can get someone else to buy it broken? nah... think I'll keep it around and fix it eventually. Its just not high on my list of priorities.