Offering the RARE original TRANSONIC SOUND SYSTEMS by RICKENBACKER amp brochure shown... Consists of eight 4" x 11" pages (counting covers) featuring "two of the most powerful, the most responsive and the most versatile sound systems obtainable for the music scene today!" The Transonic Series 100 and Transonic Series 200 amplifiers shown and described..loose-leaf hole punched, excellent condition...no date but appears to be late 60s-early 70s....excellent reference material!
..Photos show paper catalog (SOLD).

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