. "Roentgen" induction coils and other X-ray apparatus . Figure 3. Type A Coil With Table and Rlieostat Prices, B3006. 18=inch Type *«A Coil with table and rheostat for 20 volts D. C $ B3007. 18=inch Type *A Coil with table and rheostat for 110 volts D. C B3008. 15=inch Type A Coil with table and rheostat for 20 volts D. C B3009. 15=inch Type A Coil with table and rheostat for 110 volts James Q. Biddle, 1114 Chestnut Street, Philadelphia. Roentgen Induction Figure 4. Type E Coil for Electrolytic Interrupter. Type E coil is similar to Type A in its construc
. "Roentgen" induction coils and other X-ray apparatus . Figure 3. Type A Coil With Table and Rlieostat Prices, B3006. 18=inch Type *«A Coil with table and rheostat for 20 volts D. C $ B3007. 18=inch Type *A Coil with table and rheostat for 110 volts D. C B3008. 15=inch Type A Coil with table and rheostat for 20 volts D. C B3009. 15=inch Type A Coil with table and rheostat for 110 volts James Q. Biddle, 1114 Chestnut Street, Philadelphia. Roentgen Induction Figure 4. Type E Coil for Electrolytic Interrupter. Type E coil is similar to Type A in its construction ex-cept that it is without condenser or interrupter as it is specially de-signed for use with the electrolytic interrupter which is listed sepa-rately. A Rheostat is necessary when the electrolytic in-RhGOststs. • • terrupter is used. We furnish two sizes of rheostats; one for coils of 15-inch spark or more and one for coils of less than 15-inch spark. The rheostats are made to order for our own special use and are of ample capacity. Prices. B3025. i8=inch Type E Coil $ B3026. I5=inch Type E Coil B3027. i2=inch Type *E Coil B3028. Large Rheostat for Coils of i5 = inch spark or more, mounted on finely polished tsble as shown on page 7 . B3029. Large Rheostat, unmounted B3030. Medium size Rheostat unmounted, for Coils less than i5=inch spark James G. Biddle, 1114 Chestnut Street, Philadelphia. Portable Coil.
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