4 ms·
Always double check this, there are still some exceptions.
by dwringer 4y ago
Always double check this, there are still some exceptions.
- analog31 4y agoThe worst one on the bandstand is the 12 V supply for keyboards, which are center-positive. I opened up one effects pedal once, and an electrolytic capacitor had completely blown its top off, and the contents were spewed throughout the enclosure.
- doubled112 4y agoI have a 9V AC adapter (yes, as in AC output) for an older Digitech multi-effects. Every other piece of gear I own is 9V DC, and that's something that is easy to miss.
- analog31 4y agoYup, the AC adapter, followed by opposing half-wave rectifiers, was a convenient way to get positive and negative DC supplies from a single adapter. I've used those in the lab for making gadgets, usually with a huge warning label.