TCBA Volume 18 - Issue 1
Page 5 of 18
In the Morning Mail
“I have recently obtained two 807 pentode tubes...and would like some information tentative to tube driven Tesla coils using these types of tubes.” (D.J. Butler, 32 Kilnhouse Lane, St. Annes, Lancs, England FY8 3AA)
“I have analyzed the formula in the Durlin Cox article, Volume 17 #3, page 6, and find it invalid. The formula leads us to believe that increasing the length (of a resonator) will actually reduce the self-capacitance. That...is opposite to the results of experimentation which shows that, as one would expect, longer resonators have more self-capacitance.” (Robert M. Jamison)
“I enjoyed reading the material on Clara Rockmore and Leon Theremin...For anyone interested in a recording of the Theremin under Bockmore's capable hands, there is a CD available entitled “The Art of the Theremin” on the Delos label #DE1014...I purchased my copy at a Tower Records outlet.” (Ray Brubacher)
“I purchased THE WONDERS OF PHYSICS tape #15...It is great! It has a nice T.C. and very good demonstrations. I think that all TCBA people will like it.” (Bob Larson) Editor's note: See reference to “The Wonders of Physics” in the News Notes section.
“I'm sending the full $30 because it is well worth it.” (Steve Falco)
“TCBA NEWS is one journal I must have!” (Jack Giammerse, Jr.)
“TCBA NEWS...continues to be the most interesting and enjoyable publication that I receive, and I marvel at your ability to continually come up with excellent new material for each issue...I wish you good health, much happiness, and continued TCBA success in the coming year.” (Christopher Bonar)
New Members
| Scott Chandler | Mission Viego, CA |
| Mike Wagner | Covington, LA |
| W. E. Knight V | Gaithersburg, MD |
| Michael Hoffman | Chippewa Falls, WI |
| Glenn Wilson | Endicott, NY |
| Stephen P. Trump | Sawsville, VA |
| Henry Lambert | Benson, NC |
| Tony Lekas | Hudson, NH |
| Michael Sieg | Germany |
| William Peterson | Cary, NC |
| Jonathan Winter | Bellingham, WA |
| P.C.W.R. Notebaart | The Netherlands |
Changes/Corrections
| Marc House | Saranac Lake, NY |
| Rene Jaeger | Nevada City, CA |
| J. Dennis Bender | Pittsburgh, PA |
Catalogs Received
MCM (flyer): Features electronic test equipment, audio, speakers, etc., 650 Congress Park Dr., Centerville, OH 45459
WHITNEY (automotive catalog): A source for Ford spark coils and modern efficient ignition coils up to 60 KV. 1 JC Whitney Way, P.O. Box 3000, LaSalle, IL 61301-0300
SURPLUS CENTER (flyer): This firm sells electrical and mechanical surplus components of just about every type. 1015 West “0” Street, P.O. Box 82209, Lincoln, NE 68501-2209
ALL ELECTRONICS: A good source for the hobbyist - new and surplus electronic parts and supplies. There is no minimum order. P.O. Box 567, Van Nuys, CA 91408-0567
SURPLUS TRADERS: Specializes in wall transformers of all sizes. A website catalog is available at http://www.73.com/a or P.O. Box 276, Winters Lane, Alburg, VT 05440 Tel: 514-739-9328
ANTIQUES ELECTRONIC SUPPLY 1999 CATALOG: Tubes, parts, books, supplies, 6221 S. Maple Ave., Tempe, AZ 85283
C&H SALES: Electrical & mechanics surplus listed in their 138 page catalog, 2176 E. Colorado Blvd., Pasadena, CA 91107