The jacks are similar, but they will benefit from being arranged back to back, since the two [bass] octaves take as much space as four in an ordinary harpsichord Prior to 1980 when Keith Hill introduced his design for a pedal harpsichord, most pedal harpsichords were built based on the designs of extant pedal pianos from the 19th century, in which the instrument is as wide as the pedalboard.
Heavy-duty steel shelving of 18-gauge or lower is generally recommended for records. storage. The smaller the gauge number, the stronger the shelving; thus 16-gauge or 12-. gauge steel shelving is also appropriate. Shelving higher than 18-gauge is weaker and. may not be appropriate for records storage.
Manufacturers' Standard Gauge for Sheet Steel is based on an average weight of 41.82 lb (18.96 kg) per square foot per inch thick. Gauge is defined differently for ferrous (iron-based) and non-ferrous metals (e.g., aluminium and brass).he thickness of sheet metal is commonly specified by a traditional, non-linear measure known as its gauge. The larger the gauge number, the thinner the metal. Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge.