pentron: Dormiphone tape cartridges

I bought this Dormiphone at a flea market. Every thing seems to work fine (audio input and output as welle as the timer). However, I don't know what kind of tape cartridge it would use. Some folks at my local radio club mentioned Fidelipac. But I think the Dormiphone was invented in the 1950's, prior to Fidelipac cartridges (1960"s). Any ideas?

• USA_Pentron_Dormiphone_Heads (57 KB)

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David Morton, author of several books on recording era gave me the answer to this question.

If my memory is correct, the Fidelipac cartridge appeared at the very end of the 1950s. There were some other endless loop cartridges before that.(...) Have you seen the entry for the Dormiphone on my site ( http://www.recording-history.org/index.php)?  It indicates that it used the "cousino" type cartridge, the precursor of the Fidelipac cartridge. There is a bit more information about Bernard Cousino, the inventor, on my site and around the web (although most of the information about Cousino and the cartridge that you will find on the web came from my publications or my site).
 

So now I will be looking for one of these Cousino cartridges!

Alain Dufour

PS: Dave Morton's books and articles on recording equipement are listed here ( http://www.recording-history.org/HTML/pubs.php)

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Today on Ebay there is an auction for a Dormiphone and we can see the Cousino cartridge very well.

Item nymber 230369806593

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