In fact, probably around two-thirds of the combo organ problems I fix at my repair shop Bell Tone Synth Works fall into a few main categories, and they are things that anyone who knows how to solder could fix at home.
You tend to find that most suffer from the same types of problems. Though the majority of vintage organs that exist today have their share of issues, as some of the first fully electronic instruments ever made, they are also some of the simplest. The warm sounds of 1960s electronic 'combo' organs from makers like Vox, Farfisa, Ace Tone, Yamaha, Elka, and more have been heard in popular music for more than 50 years.
