TY - BOOK AU - Langford-Smith,F. TI - Radiotron designer's handbook AV - TK6563 .L34 1956 PY - 1953/// CY - Sydney, Australia PB - Published by the Wireless Press for Amalgamated Wireless Valve Co. Pty. KW - RADIO KW - RECEPTORES DE RADIO KW - AMPLIFICADORES DE RADIO KW - DISEÑO ER -