If a 14-2 cable is run from the panel to the outlet, then a 15 amp circuit breaker is the largest that can be used to protect that circuit. If a 12-2 cable is run from the panel to the outlet, then a 20 amp circuit breaker is the largest that can be installed to protect the circuit. Support cable.
Types Of Keyboard. There are two major types of computer keyboards: Basic and Extended. The Basic keyboard contains 104 keys and is enough to perform all the functions that can be done on a Windows PC. The Extended keyboard may have additional keys and the design varies among the companies manufacturing them.
In addition to the dimensions, different styles of pianos vary in their number of pedals and sometimes, their number of keys. Most pianos have 88 keys, though some older pianos have 85 keys, and some manufacturers make pianos that include additional keys (notably, BÃ¶sendorfer).