RADIO AMATEUR

Collection by Francisco Solanas • Last updated 12 days ago

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Francisco Solanas

Yuri Kovalenok on Instagram: “Music Tesla coil with GU-81M Friends! This is an Audio modulator of electric discharge based on Tesla TUBE coil GU-81M. The device…”

4,266 Likes, 36 Comments - Yuri Kovalenok (@jurij0001) on Instagram: “Music Tesla coil with GU-81M Friends! This is an Audio modulator of electric discharge based on…”

Irrigation Pipe Antenna Mast

APRS Antenna for AO-40

Active Antenna AA-7 HF/VHF/UHF, 3-3000MHz, Antenna booster

AA-7, Antenna Booster, Active antenna to pull in those hard to get signals, 3-3000 MHz.

1/4 Wave Ground Plane Antenna Calculator

Quarter wave antenna calculator. This page can be used to calculate the element and radial lengths for a 1/4 wave ground plane antenna.

A Good Loud Crystal Set Radio

Describing how to make a practical crystal set AM radio that is quite loud, with some justification.

1948 One Tube Broadcast Set for Beginners | OneTubeRadio.com

1948 One Tube Broadcast Set for Beginners

10sd156 Leon Guanajuato Mexico: DIAGRAMAS DE ANTENAS

DIAGRAMAS DE ANTENAS

Balún 1:1 ANTENA PARA RADIOESCUCHAS (SWL)

PADDLE details PA4NIC

PADDLE details PA4NIC

PADDLE details PA4NIC

Les presento el proyecto de una radio valvular regenerativa AM para ondas medias, relativamente simple de hacer y que usa componentes electrónicos modernos. En la actualidad, las radios a válvulas son difíciles de construir porque necesitan materiales especiales que no se encuentran fácilmente en comercio como por ejemplo las bobinas, los capacitores variables, los transformadores … Seguir leyendo Receptor valvular regenerativo →

Receptor valvular regenerativo | Inventable

Les presento el proyecto de una radio valvular regenerativa AM para ondas medias, relativamente simple de hacer y que usa componentes electrónicos modernos. En la actualidad, las radios a válvulas son difíciles de construir porque necesitan materiales especiales que no se encuentran fácilmente en comercio como por ejemplo las bobinas, los capacitores variables, los transformadores … Seguir leyendo Receptor valvular regenerativo →

Spy Bug FM Transmitter Spie a transistor by Roberto Chirio

Spy Bug FM Transmitter Spie a transistor by Roberto Chirio

Crystal Radio Litz Wire Contra Wound Coils at makearadio.com

Crystal Radio Litz Wire Contra Wound Coils at makearadio.com

Contra coils are my favorite radio coils. They can be wound as a spider coil as shown in this article or can be wound as a cylinder coil. The main advantage is that the resultant Q at the high end of the medium wave band is better than a regular wound coil. This improves the selectivity at the high end of the band.

Mini-Whip active antenna 10khz - 30Mhz  by Roberto Chirio

Mini-Whip active antenna 10khz

Mini-Whip active antenna 10khz - 30Mhz by Roberto Chirio