Tesla Apparatus for X-Ray Work

[88960.] — Tesla Apparatus for X-Ray Work. — See my reply (88810) in "ENGLISH MECH." for Sept. 11, 1896. The only difference you need make will be to wind the secondary with about ten layers of No. 36 instead of No. 32, using thin red vulcanised fibre (3/8 in. thick) between each layer of wire. Of course, you must use a resistance in circuit with the primary, so as to limit the current to about six amperes; otherwise you may heat the wire injuriously.

S. BOTTONE.