[NJARC] Grundig Radio Cap Values

[Scott Roberts]

Greetings!

I am considering recapping my early 1960's Grundig
Majestic console- it is showing the usual signs of
capacitor failure, and so I am hoping to bring her
back to her former excellent sound quality. However I
am somewhat confused at the values. I am used to mf &
uf, and pf. This radio has values shown in her
schematic of nf, uf and pf. What is "nf"? It seems the
electrolytics are marked in "uf" but a lot of the
paper caps are marked in "nf"

Examples form Grundig schematic for the model SO 2
U/1:

C-11  22nf

C-29  47nf

C-62  2,2 nf

C-84  50uf 12/15v (Electrolytic)

I have also identified from the schematic the paper
caps(papier), the ceramic caps(keramik) but what is a
"Styroflex" capacitor, and should they be replaced as
well? I am planning to replace the paper ones and the
electrolytics, but not the ceramics.

Thanks for any help here,
Scott

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