RCA SOLID STATE DATABOOK Series: 1 # SSD-204A Power transistors & power hybrid circuits. Data & application notes. 1 # ssd-205A RF Power devices Data & app notes. 1 # SSD-206A Thyristors, rectifiers & diacs. Data & app notes. All three books are 1973 editions. $15.00 each, including up to $3.50 shipping, or $50.00 for all three, including up to $5.50 shipping. GENE RASTBERGER 5053 KENMORE ST SPRING HILL FL 34608-2904