Classified Advertising

WANTED: NEWSPAPERS AND MAGAZINE articles written by or about Nikola Tesla. Also, interested in any books and magazines about radios from the 1920's. Describe and price. Andy Francella, 111 Rockland Ave., Larchmont, N.Y. 10538.

Sale: Used ignition Transformers, 10,000 volts @250 VA. $6 ea. or two or more @ $5 ea. Hook them in parallel for higher current rating. Please include shipping (about 15 lbs. ea.) Harry Goldman, RD3 Box 181, Glens Falls, N.Y. 12801

Sale: Large 16X20 photo of Tesla's Colorado experimental lab ablaze with cascading discharges. Photo shows Tesla inside coil reading a book, dedication to English physicist Sir William Crookes. $25 each. Tinted blue for effect, $5 extra. Postpaid. These are true hand enlargements and not poster blow-ups. Satisfaction guaranteed. Other photos available in all sizes. Harry Goldman, RD3 Box 181, Glens Falls, N.Y. 12801.

• * COMPLETE VACUUM TUBE OSCILLATOR SYSTEMS WITH 2" THROUGH 16" BRUSH DISCHARGES!
• * COMPLETE SPARK EXCITED RESONANCE TRANSFORMER SYSTEMS WITH DISCHARGE PATHS FROM 4 FEET TO 75 FEET!
• * 14.4 Kv, 5 Kva POWER TRANSFORMERS!
• * .02 MFD, 20 Kv HIGH Q FACTOR ENERGY DISCHARGE CAPACITORS!
• * .025 MFD, 40 Kv HIGH Q FACTOR ENERGY DISCHARGE CAPACITORS!
• * OVEN-BAKED (280° F. @ 8hrs), VACUUM-IMPREGNATED COIL FORMS IN VARIOUS DIAMETERS (4"-36") and POPULAR LENGTHS (2-20 ft.)!
• * TORROIDIAL POWER FACTOR CORRECTION AND CURRENT-LIMITING INDUCTORS TAPPED AT VARIOUS INTERVALS, 0-5, and 0-8 Kva!
• * SOLENOID TYPE CONTINUOUSLY VARIABLE POWER FACTOR CORRECTION AND CURRENT LIMITING INDUCTORS!

For additional details, contact D.C. Cox via telephone at (608)356-3647. Or write to Resonance Research, Inc., RR1 , Box 61, Baraboo, Wisconsin 53913.

Where to Buy

SURPLUS CENTER, 1000-1015 West 0, P.O. Box 82209, Lincoln, Nebraska 68501. High voltage direct current units, gear motors, gear reducers, welding reactance coils. Prices moderate and up. Catalog.

ETCO ELECTRONICS CORP., North Country Shopping Center, Rte. 9N, Plattsburgh, N.Y. 12901. Wide variety of electronic knick-knacks. Prices inexpensive and up. catalog. One interesting item at $.49 each is a spark gap quench tube. Try one on your spark gap!