110 semiconductor projects for the home constructor [by] R. M. Marston. Marston, R. M. Electronics Amateurs' manuals. Transistor circuits. TK9965 .M33 621.3815 MAO Label mounted on t.p.: Sole distributor for the U.S.A., Transatlantic Arts, New York. London, Iliffe, 1969. 1969. 1969 Text 8, 125 p. eng