Those keyboard kings at Key Tronic Corp, up in the Pacific North West in Spokane, Washington, is reducing prices on the most popular of its retail key-boards, the first such reduction on these products since their introduction, effective immediately. The company has also extended to three years the warranty on all Key Tronic Professional Series retail keyboards bought after October 28. The new suggested price for the KB 101-1 101-key board is $139, off 12.5%. The 99-key KB 5151, which is the biggest seller, is cut 22% to $199. The KB 3270/PC for personal computers using 3270 emulation boards to interface with IBM mainframes, is cut 29.7% to $229. The KB 5153 Touch Pad keyboard with built-in digitising pad for four-mode operation, is off 37.6% to $249. The company attributes the cuts to manufacturing efficiencies and to the fact that research and development costs are now amortised.