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HIGH FREQUENCY APPARATUS by Stanley Thomas Curtis in hard cover reprint, $15.95 with postage paid. This is one of the best Tesla coil project books ever written. Maybe times have changed but Tesla coils still function with a spark gap and glass plate capacitors. Send check or money order to Tesla Coil Builders Association, RD3 Box 181, Glens Falls, NY 12801

The TCBA hard cover reprint of the Transtrom book, ELECTRICITY AT HIGH PRESSURES AND FREQUENCIES is sold out. But TCBA will reprint this book again if 50 or more commitments can be obtained. If you wish to see this book in print again but have not yet sent in your name, please do so with a statement of your commitment to buy the book should it become available. DO NOT SEND ANY MONEY!

SALE: TESLA COILS-reasonably priced, several sizes to choose from or will build to your dimensions. Write Daryl Learned, RD #2, Box 94, Auburn, PA 17922

SALE: NIKOLA TESLA BOOKS-send for list to the same address immediately above.

SALE: TOROIDS-if you've been looking, you know how hard they are to find. Now, put the finishing touch on your Tesla coil with these hollow spun aluminum toroids. Ten inch OD, 4" ID, 3" high with a 3/8" hole through the center disk. $50 (includes shipping). Other sizes available. Please allow approximately 6 weeks for delivery as these items are produced only on request. Dave Friedman, 11129 Barman Ave., Culver City, CA 90230.

SALE: VAN DE GRAAFF GENERAT0R-200,000 volts of electrostatic energy - free details. Associated Scientific, Box 15098, San Diego, CA 92115 (Notice: this advertisement was seen in a magazine and is included here as a service to our members).

SALE: Q METERS-I have two to offer as follows: TS 617 Taffet, $50. Also, a bare bones Heathkit $25. Buyer pays shipping. No manuals. Joseph I. Lisaius, 116 Orton Road, W. Caldwell, NJ 07006.

SALE: LIGHTNING IN HIS HAND, THE LIFE OF NIKOLA TESLA by Hunt and Draper. $5 plus postage from Antique Electronic Supply, 688 W. First St., Tempe, AZ 85281

SALE: SURPLUS ELECTRONIC GEAR-write for list (SASE please), Andrew R. Sabol, Electronics, 301 Osborne Ave., RD 2, Waterville, NY 13480 (315) 841-4996

WANTED: I am looking for a moderate sized Alexanderson Alternator to borrow, rent, or purchase. Write to Peter Lefferts, 1640 Decker Ave., San Martin, CA 95046

TCBA Hats

We still have a supply of TCBA hats in either solid or mesh back design. Hat is blue with yellow design and lettering. $7 postage paid (two for $13, 3 for $18, etc.) Send check or money order to Tesla Coil Builders, RD3 Box 181, Glens Falls, NY 12801. BE SURE TO SPECIFY THE DESIGN YOU WANT!

SALE: TESLA COILS-I am not in the business of selling Tesla coils but I have finally finished and tested two designs and am going to follow with experimentation in other designs. Therefore I have two coils, one vertical and the other horizontal bipolar. The plywood parts are finished in maple. These units will give a 24" spark with a 15KV, 60ma transformer (depending upon spark gap and capacitor efficiency). Write TCBA and/or send $1 for color Polaroid (state which coil you are interested in). Prices are very-very reasonable considering the time spent.

SALE: ULTRA-SOUND MEDICAL UNIT with probe in exc. condition. $50 plus shipping. Write TCBA and/or send $1 for Polaroid.

SALE: URM-90 military electrical tester. Tests for inductance, capacitance, and resistance without any external sources. In exc. condition and with manual. $100 plus shipping. Write TCBA.

SALE: I have several antique VIOLET RAY units in working order. Write TCBA and/or send $1 for Polaroid.