restaurar radio philco modelo 20 - Printable Version

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restaurar radio philco modelo 20 - amelina89 - 08-15-2021

Hola amigos:
Compré hace unos años una radio philco modelo 20 que me encantan pero le falta la rejilla delantera con lo cual tengo que hacerla le faltaba el altavoz y conseguí uno en estados unidos pero la radio está muy sucia interior y exterior la enchufo se encienden las válvulas pero no hace ruido el altavoz muevo el díal pero nada hoy el altavoz hizo un pequeño ruido pero no sé si seran las valvulas que alguna falle os pogo fotos a ver que me aconsejais.Busco su esquema y manual si lo hubiera.
Un saludo.

Hi friends:
I bought a few years ago a philco model 20 radio that I love but it is missing the front grill with which I have to do it, it was missing the speaker and I got one in the United States but the radio is very dirty inside and outside I plug it in the valves turn on but The speaker does not make noise I move the dial but nothing today the speaker made a small noise but I do not know if it was the valves that some failed, I can give you photos to see what you advise me.
All the best.

[Image: https://i.postimg.cc/67J3Rvns/IMG-7789.jpg]

[Image: https://i.postimg.cc/bSJN8Hcn/IMG-7791.jpg]

[Image: https://i.postimg.cc/bGxvRw9Z/IMG-7792.jpg]

[Image: https://i.postimg.cc/CBJLWrtY/IMG-7794.jpg]

[Image: https://i.postimg.cc/R6vZpxgX/IMG-7795.jpg]

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RE: restaurar radio philco modelo 20 - klondike98 - 08-15-2021

These old radios always need to have their electronics restored before they will work correctly.  If it has not been restored before, it will need all of the capacitors replaced and probably most of the resistors.  There may be other problems as well.  If you have never restored a radio like this you will need to do some reading to learn to read a schematic, learn to measure voltages and resistances and learn how to solder.  Depending on your radio's version it will have one of two schematics found on the following link:  https://philcoradio.com/library/index.php/service-info/early-schematics/


Google translation to Spanish:
Estas radios viejas siempre necesitan que se restauren sus componentes electrónicos antes de que funcionen correctamente. Si no se ha restaurado antes, necesitará reemplazar todos los capacitores y probablemente la mayoría de las resistencias. También puede haber otros problemas. Si nunca ha restaurado una radio como esta, tendrá que leer un poco para aprender a leer un esquema, aprender a medir voltajes y resistencias y aprender a soldar. Dependiendo de la versión de su radio, tendrá uno de los dos esquemas que se encuentran en el siguiente enlace: https://philcoradio.com/library/index.php/service-info/early-schematics/

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RE: restaurar radio philco modelo 20 - morzh - 08-15-2021

Amelina


How knowledgeable are you in electronics / tube electronics? If not, this is not for the faint of hearts. That can kill you. If you know someone who restores them, ask them. But do not plug it in before the restoration is complete - you can at best destroy the radio, and at worst put your house on fire.


Mike

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