Original Acoustical Quad Amplifier Instruction / Specification Manual

Original Acoustical Quad Amplifier Instruction / Specification Manual An early 1950s Original Acoustical Quad Amplifier Instruction / Specification Manual, predating its name change to QUAD II. It comprises 11 pages, which are in fairly good intact condition, and comes with a Combined Circuit Description and Specification for the Quad Control unit and Quad Amplifier. Published by The Acoustical Manufacturing Co. Ltd, Huntingdon, UK: better known as "Quad" short for Quality Unit Amplifier Domestic. The cream paper cover is in fair condition, with edge creases, yellowing and slight fading. Approximate size: Width: 20 cm Height: 12cm Depth: 1mm A nice accompaniment to a vintage Acoustical Quad Amp! Please click on the following links for more vintage reference books and HiFi.