Nikola Tesla Books
ROTARY Spark Gap Detail: rotor, special moulded composition, 5 inch diameter; brass electrode arms with 12 zinc spark points; rotor mounted on motor shaft; two stationary zinc electrodes with knurled hard rubber composition adjusting handles; heavily nickelled supporting pillars; motor, Robbins and Myers' Standard for 110 volt, 60 cycle AC or 110 volt DC, with variable speeds up to 8000 RPM. Base, mahogany finished. Overall size, 102x7x63 inches. Shipping weight, complete gap, 16 lbs.; rotor and electrodes only 3 lbs. PRICE Rotary Gap No. 442, with R and M Standard Motor. . $17.50 Rotor and stationary electrodes only. .... 5.00 R and M Standard Motor, as used with complete gap 12.50 Magnetic Leakage Transformers Similar in Design and Construction to those described in this book. Self-controlling and of highest efficiency. Built expressly for high frequency work. Type E, Four Variations of Power - 4 K. W., $30.00 ½ K. W., $45.00 Blitzen Type, Full Power Only 4 K. W., $15.00 - ½ K. W., $22.00 - CURTIS ENGINEERING LABORATORIES CO. 104 Fifth Avenue, New York
