sachsenwer: Sachsenwerk Olympia with different tubes

I am working on a Sachsenwerk Olympia Reflex Super with a different tube lineup.  The photo on the back of the radios quotes the radio as using an AK1, an AB1, E446, E453, and an 1805.  The instructions on the back of the radio are all in French and this probably has something to do with the tube line up.

Best regards,

Donald Cochrane

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In Germany Telefunken was the holder of key-patents for tubes and radios. Thus by licence agreements radio companies were urged to use Telefunken tubes for the first tube line up. 

For export in foreign contries other licence or no agreement were valid. So Sachsenwerk could be free to choose the most economic tube line up or was urged to use tubes according to local licence agreements. In this case they used Philips tubes.

There are some examples were also other German companies used local produced tubes in their wireless sets. Very oftes these have been cheaper than Telefunken tubes.

Especially in France a wide varity of different tubes has been used in radios in those days. E.g. Local produced, Philips, Telefunken odr American tubes.

Rüdiger Walz

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So, there won't be any differences in the schematic?

Best regards and Merry Christmas,

Donald

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No, the Philips types in your set are exact equivalents to the Telefunken types used in the german market. You should also be aware that every european tube manufacturer had its own type designation system in those years. Usually there will be compatible tubes with totally different markings from other manufacturers like Valvo or Tungsram too, not to mention the wide variety of british manufacturers with their own systems. You can get good help by looking at the tube pages at this site, where usually several equivalents for each type are listed.

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