Apple Lisa 1 - restoration project

Vinegar! Vinegar! Vinegar! The common household type! qualifiers, the type is determined by the application. If I'm making a salad, a flavored vinegar, such as wine or malt or even apple cider vinegar is used. Balsamic vinegar has lots of gunk in it and is used for a more complex, somewhat sweet flavor in marinades and salad dressings. I'd never think of using it to clean a PCB. Rice wine vinegar is often used in oriental cooking--somewhat sticky when the water evaporates. If I'm pickling (e.g. dill pickles or making sauerkraut), I'll use distilled white vinegar (usually about a 5% solution) as it's the least expensive (commonly sold in gallon jugs). The same vinegar is used for removing lime deposits from a steam iron or coffee maker and for washing windows (if lime stains are present). Just plain old dilute acetic acid, source not important. Brass musical instrument players soak their instrument's valves and tubing in white vinegar to remove deposits left from saliva. Doesn't hurt the brass at all and leaves little smell behind. Sulfamic acid (dry crystals obtained from a paint store) is often used when cleaning masonry indoors where the fumes of muriatic acid would be objectionable. It's stronger-acting than vinegar, but less than muriatic acid and conveniently mixed from the crystals and water as needed. Cheers, Chuck