Searching on rmorg for 234A comes up with parallel models branded Aristona, NSF and Siera. They don't have an entry on the Mediator example either, so it's likely at least somewhat rare.

Usually Mediator was the brand for the Swiss home market, but since the M234A not on rmorg (which I consider reasonably complete on Swiss models) but found by you in southern Europe, I speculate that in this case it might have been used as a more general export brand in addition to the more usual Siera brand (which is relatively common in Portugal, I think?).

In any case, it was made by Philips Leuven, probably one of the largest Philips radio factories for bulk production by then.

Watch:
https://www.google.com/search?q=mediator+radio&oq=mediator+radio&aqs=chrome..69...

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een kinderhand
is ook weer gauw leeg

Carlos,

Are you sure about the tube sockets? A combination of Loctal and rimlock seems more logical to me.

Hans

Edit
Unless the output tube is an EBL21

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raaf apenstaart multiweb punt nl

Misschien gelijk aan de Sierra?.
Groet, Ben

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Van een mug een olifant maken kan ook andersom.

Hello Carlos,

Your Mediator M234A is the AC-version of the AC/DC-model Mediator M234U. This universal model is described by a Portuguese collector on a model page in Radiomuseum.org. See LINK.

Regards,

Gidi Verheijen

Hallo.

The radio's IFs were opened and "messed around" a lot, so I don't trust them, even though the windings provide continuity.
The reference number written on the shield is 1941, which I think is A312194.1
I don't have this reference number, but I have 1942 (A312194.2). Can I use these instead of 1941?
The windings are the same, and the frequency is the same (452kc).

Thanks.

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From PORTUGAL, with regards
Carlos