A High Efficiency Extended Length Mobile Antenna
By W5JGV I originally wanted an antenna that would not hit everything overhead while driving, since it was to be installed on a van. I came up with an
Quality Electronic Kits, Electronic Projects, Electronic Schematics, FM Transmitters, TV Transmitters, Stereo Transmitters
Quality Electronic Kits, Electronic Projects, Electronic Schematics, FM transmitter related schematics, circuits, diagrams, projects, pcbs and tutorials.
Dave's Homemade Radios Crystal Set #58, is changed to a one 1625 tube radio before your eyes.
My #58 crystal radio is now a one tube shortwave radio. I made the change as shortwave crystal radios are not generally that good. My one tube radio brings in stations in the 49, 41 and 31 meter shortwave broadcast bands as well as station on the 40 meter ham band.
Vacuum Tube 1924 Old Paper
Description: Top quality Giclee print on high resolution Archive Paper Artwork by Steve King Professionally framed and mounted on acid free archive matte High quality durable non-warping frame Arrives ready to hang Includes a certificate of authenticity Made in the USA Shipping & Returns: Ships in 2-3 Days Shipping
Dave's Homodyne Regen Radio Page
Here is a project that will please. It is my two transistor homodyne two transistor regenerative receiver. This radio is based on a 1970's design by a British radio builder.
AM Radio built around LM555
AM radio built around 555 timer chip. The only active device (silicon, germanium, or otherwise) is the LM555. The tuning is accomplished with an inductor and a capacitor, and the LM555 acts as an AM demodulator and class-D power amplifier to drive the speaker. You may be wondering how all this is accomplished with a 555. Here�s how the circuit works: The AM radio signal is tuned by inductor L, which is 300 turns of wire on a 1/2 inch diameter cardboard tube made out of a paper roll, along…