Spider Crystal Radio with powered sound.

A spider shape crystal radio.
It has a 3W sound amplifier card, so you can ear it with the loudspeaker that It has at the basement.
You can ear it with low impedance headphones as well, thanks to the 1300:8 audio transformer.
The blue ferrite coil is a T200-1, with 50.8 mm output diameter.
Circuit diagram:
i.ibb.co/LhnBD...
Pictures:
i.ibb.co/9Tbms...
i.ibb.co/vPbPz...
i.ibb.co/QjBm4...
i.ibb.co/mCLDZ...
i.ibb.co/dKm6b...
Radio de galena con forma de araña. Está equipada con una tarjeta amplificadora de sonido para que se pueda oir con el altavoz que lleva.

[@thevintageaudiolife]

Interesting, thanks for sharing

[@manuelparra9733]

eres tremendo

[@leonardovera6228]

Podés pasar el equema

[@RadioDeGalena]

Esquema:
i.ibb.co/n0PJDYr/20210603-141123.jpg

[@reginaldonascimento8692]

Mande aí o esquema

[@RadioDeGalena]

You can find the scheme and detailed pictures of the set at the description of the video.