Valve antenna tuner - French?

 

This one valve antenna tuner currently on Ebay UK sale - item 141097436861. No maker's name but three position selector switch marked " OC PO GO" - French SW/MW/LW. Seller says that the single valve is a Miniwatt Dario 6BA6. Does any member recognise this interesting period accessory?

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• French antenna tuner (?) Ebay October 2013 item 141097436861 (98 KB)
• French antenna tuner (?) Ebay October 2013 item 141097436861 (107 KB)

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I think a hobby project.

The tube is roughly B7G version of better known in UK EF89 roughtly. So an RF preamp with loop aerial.

 

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This kind of antennas were very common in France in the 1950s under the name “antenne cadre anti parasite”.

The company RADIO CONTROLE, LYON, appears to be the largest manufacturer of these antennas under the name "REX".

The 6BA6 ist the most common HF/IF valve of the B7G version worldwide, also known as EF93 in Europe.

I don't think the specimen shown here is a hobby project, it's typically for French production. If you take a search by “antenne cadre anti parasite” you will find many more examples, just to show some:

A

B

C

D 

E

Best Regards,

Jacob 

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Many thanks for your replies. Following Jacob's lead, using the phrase "antenne cadre anti parasite" in RMorg's own search produced no less than 263 hits. A fascinating range of frame aerials from all eras and also, as Jacob said, large numbers of amplified "active antennas" from the 1940-60's  epoque. Some very elegant and attrative designs, the "picture frame" being particularly popular. I am glad to see that these popular period accessories are so well documented in RMorg. Many thanks once more.

Clive.

 

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