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Giant banana connector

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Reference is made in this article about a version of banana connector with "2 mm banana connectors".

There is also a "giant" version made by HH Smith. Here is a link to the male connector. They do have a corresponding female jack. https://www.abbatron.com/products/45-uninsulated-banana-jacks/143-uninsulated-banana-jack

Johnson-Cinch also makes what they call the "Jumbo" banana connector. http://www.farnell.com/datasheets/187304.pdf