b and c digit selector
21Jackson Soloist — The Jackson Soloist is an electric guitar model by Jackson Guitars officially produced since 1984 (prototypes were available in early 1980s). Jackson was essentially the pioneer of the Superstrat design. Overall design started as a superstrat… …
22Fender Lead Series — The Fender Lead Series was produced by the Fender/Rogers/Rhodes Division of CBS Musical Instruments. This series went through Lead I, Lead II and Lead III models. General features * Manufactured Fall 1979 through 1982. * Vintage style “Soft C”… …
23Number Five Crossbar Switching System — The Number Five Crossbar Switching System or 5XB switch, designed by Bell Labs and made by Western Electric, was in use in Bell System telephone exchanges from 1948 to the 1980s. Its principal use was as a Class 5 telephone switch, though… …
24Marchant Calculator — Marchant XLA calculator, based on Friden s design The Marchant Calculating Machine Co. was founded in 1911 by Rodney and Alfred Marchant in Oakland, California. The company built mechanical, and then electromechanical calculators which had a… …
25Number One Crossbar Switching System — The Number One Crossbar Switching System, or 1XB switch, was the primary urban local telephone exchange design used by the Bell System in the mid 20th century. Its switch fabric topology was based on the earlier urban panel switch system, which,… …
26Stepping switch — In electrical controls, a stepping switch is an electromechanical device which allows an input connection to be connected to one of a number of possible output connections, under the control of a series of electrical pulses. They could step on… …
27microKORG — The microKORG The microKORG XL The microKORG is a MIDI capable virtual analog synthesizer/vocoder from Korg …
28MicroKORG — had three motion sequences), lack of an XLR microphone input, and in a smaller case with fewer real time control knobs.The microKORG has been a popular success, being used by a diverse range of musicians such as Devo, who currently have one as… …
29IBM 1620 Model I — The IBM 1620 Model I was the original implementation of the IBM 1620 scientific computer, introduced in 1959.This unit (commonly called 1620 until the Model II was introduced) was produced as inexpensively as IBM could make it, in order to keep… …
30IBM 1620 Model II — The IBM 1620 Model II (commonly called simply the Model II) was a vastly improved implementation, compared to the original Model I, of the IBM 1620 scientific computer architecture.It had basic ALU hardware for addition and subtraction, but… …
