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The Signetics NE555 Retro Electro print explains the history and background of this timer device that is of particular significance to engineers and hobbyists the world over. Its cult status has partly resulted from its regular use in education, with students building simple timer and oscillator circuits as they made their first steps into the fascinating world of electronics.
Its simple design and configuration in monostable and astable modes has led to its use in applications ranging from thestraightforward, such as egg timers and metronomes, to the complex, such as class-D amplifiers.
A DIP package version of the Signetics NE555, hand-drawn by the graphics designer Armand Molders, is complemented by a brief history of the device’s origin, written by electronics engineer and Elektor contributor Stuart Cording. Accompanying the drawing is a reference circuit of the NE555 being used in monostable mode, complete with the equation needed to determine the period of the output.
Each print has a hand-applied NE555DR4 SOIC device from Texas Instruments, a device originally launched in 1973. Also enclosed is a Certificate of Authenticity. The prints are limited to a total of 0xFF (255) copies, with each copy hand-numbered and signed. The 30 x 40 cm (11.8 x 15.7') print is designed to fit standard picture frames, and is well suited to the deep HOVSTA frame sold by IKEA. Each is then carefully shipped in a plastic-free package.
These prints make an ideal gift for the workshop or lab of hard-to-buy-for engineering family members, a retirement present, or a memorable corporate gift.
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