grundig so390 u/s

[Alfonsol]

i have this console at my house, it is non working since 1979 when the transformer burned because of leaky filter caps, and my uncle replaced the fuse with a wire.
the cabinet is in very good shape, the reel-to-reel and the turntable are working fine. the speakers also are fine. it also have a reverb unit but i don't tested it yet
the amplifier is an NF2, and i have the schematic of this with the voltages i should read at different points, but i don't have the schematic for the radio section.
i recapped the power supply, changed the rectifiers, and send several years ago the transformer to a repairman, but it dissapeared with the transformer.

the power transformer is not a problem, because i have the specs and i can make another.

i plan to recap the entire unit, because the paper caps are in very bad shape.
with what kind of caps i can replace the paper caps?
how i can tell if the audio transformers are in good shape?
the original rectifiers where selenium rectifiers, it's true that i must expect more voltage in the B+ with modern rectifiers, and i must put a resistor to drop this extra voltage?

when my brother arrives with the camera i wil post some pictures

[Tom Bavis]

This unit (US version) is covered in Sams Photofact folder # 723-6. Too new to be in my files - you should be able to get a copy at findatube.com for $5.

I may be able to get you a schematic from radiomuseum.org - I'm a member at that site. Maybe even a service manual - Sprechen sie deutsch?

Mylar (polyester) dielectric caps will be fine, and are smallest - polypropylene my not fit everywhere. You can get a transformer with slightly (10-20V) lower voltage, or drop the excess with a resistor.

[Alfonsol]

thanks for the advice about the caps and the transformer.
it would be great if you can get me a schematic, or a service manual.
i don't speak deutsch, but i can understand a little.
i speak french, and spanish.(i am from chile).
it's hard get schematics here in chile, and i don't have yet a credit card because i am still a student. and i don't like to send money by mail, because the mail here is not too secure.

[Bruce221]

Mylars will cost you -illinois caps will fit anywhere and cheeper on your budjet illionois caps will aproach the vintage tone ect --not as good as the mylars but much much less on the wallet-on tranny use an vtm meter and chec the ohms one side of tranny should be high the other low-but I may have forgot this so dont hold me to it.