[JRomero]

Hola locuspiolin.
Es necesario que pongas los códigos de las lámparas y unas fotos del chasis por arriba y por abajo para ver si encuentran algún esquema que te pueda valer de ayuda.
Encontrar un esquema generico con las válvulas que lleva tu radio es más o menos fácil.
Encontrar el esquema exacto va a ser muy dificil, por no decir imposible.


It is a BC/SW spanish brandless kit with early "american" tubes and tone contol.
You need a generic scheme.

Without a doubt.
Made by somebody in late 40's or early 50's, with early 30's tubes and fixed in 50's with a B8A base.
For AZ41 (4V direct heating rectifier) or EL41 (power pentode) ?
The cabinet's style is from late 40's, early 50's.
The speaker shurely is electrodynamic without anti-hum coil.
It seems it was built with the tubes what they found by the drawers ...
It is very weird using tubes with 2,5V heatters at early 50's.

I think they could have used 80, 42, 75, 6D6, 6A7, or maybe octal tubes (5Y3, 6V6, etc).
Or better, Rimlock tubes with base B8A (AZ41, EL41, EAF42, EAF42, ECH42).

It isn't wood or bakelite.
The cabinet is really made of plaster or white cement or ceramic like bricks with something else inside to reinforce the structure.
Maybe wire netting or/and some type of bandage.
And the front is made with a mold to give it a snake skin look.

Phonolite is a rare type of volcanic stone:
https://en.wikipedia.org/wiki/Phonolite

This phonolite cabinet is not mine, pics found in Internet.
Look at Rimlock base B8A tubes:
[Image: http://thumbs.subefotos.com/fa351d92da20...ed5cao.jpg] [Image: http://thumbs.subefotos.com/2469ee412ecc...951beo.jpg] [Image: http://thumbs.subefotos.com/bbccd082831f...7df15o.jpg]