Litterature

Here is a list of books we recomend

Philipsbok
Philips standard book. Contains most Eauropen types.

Philips långlivsrör
Philips special quality valves eg the best they had!

Rörbok
Simple valve book for European and American types.

RCA-bok
Last edition from 1975. The perfect book for you who are interested in American types. Also contains scematics and education.