This page is also a continuation of the Spark, Bang Buzz website at Spark , Bang, Buzz If you have any comments or submissions, E-mail to me a message at lenyrwp@earthlink.net
Anyone reading this web page should not assume that any given subject is safe or legal. The purpose here is to give information only. I take no responsibility for what anyone may do with the information given here. What you do with it is your own business and responsibility. Building some of the projects, described here, can be dangerous, illegal or both; and require that the builder or user be very conscientious and able to exercise a great deal of Caution and Common Sense. A project described as "relatively safe" may not be completely safe. It may be described as "relatively safe" only because it appears to be safer than making a batch of Nitroglycerine. Never get cocky where safety is concerned.
POLITICAL CORRECTNESS!!! This page welcomes all varieties of race, gender or anyone interested in its contents. If you are offended by anything that seems politically incorrect, don't write to me. I do not care to be annoyed by fanatic whiners who expect every printed line to pass correct political specifications.
Zinc Negative Resistance Crystal Oscillators.
This is a continuation of my first article on zinc negative resistance oscillators made from the simple homemade zinc negative resistance diode.
In the early 1920's Oleg Losev in Russia experimented with negative resistance oscillators and circuits using zincite. One of the main problems was that usable zincite came from only one place in the world - New Jersey.
My articles are about doing very similar experiments using heat treated galvanized sheet metal. I believe Losev would have been very excited if he had been able to try heat treated galvanized sheet metal as a substitute for zincite and it may very well have worked even better.
My first article on zinc negative resistance oscillators.
Zinc Negative Resistance Oscillator.
This article includes some good basic philosophy on antennas.
"Easy Ten" A simple 80 meter CW Transmitter Using A 2N3904.
I also observed a very intriguing phenomenon of flame electrical conductivity; that electrons from a cathode, placed inside of the flame, can flow to the anode even when the anode appears to be placed well outside of the flame.
Flame Triode With Gain.
"Easy Ten" A simple 80 Meter CW Transmitter Using A 2N3904.
A very simple 80 meter CW one transistor QRP transmitter made from a common npn transistor, two resistors, two capacitors, a 3.5 - 4 mhz crystal and a 9v battery. I call this transmitter "The Easy Ten" because it can be easily heard from a distance of over ten miles.
Flame Triode With Gain.
I have found a simple way to make a triode with gain using an alcohol flame. This flame triode exhibits both power gain and voltage gain. By making a flame dual triode, I have been able to make a free running multivibrator oscillator and code practice oscillator.
Homemade Cathode Ray Tubes.
Homemade Cathode Ray Tubes.
Homemade T.E.A. Lasers.
Homemade T.E.A. Lasers.
Videos of sparkbangbuzz.com projects and other web interesting web sites.