Double banana plug
thingiverse
This device is designed to connect two banana plugs into a standard double banana plug, requiring 19 mm or 0.75 inches of space between plugs. It employs a banana plug similar to the one below, any plug with the same shape will suffice. To assemble this device, you will need 2 M3 nuts and 2 M3x10 flat head screws. These are affiliate links; they won't cost you anything but may generate a few cents for me. Banana plug: https://www.banggood.com/5-pair-AMASS-4MM-Gold-Plated-Banana-Plug-Bullet-Connectors-Charger-Adapters-p-1043319.html?p=IH111511352354201706 M3x10 flat head screws: https://www.banggood.com/Suleve-M3SP1-50Pcs-M3-Stainless-Steel-Phillips-Flat-Head-Countersunk-Machine-Screw-4-12mm-Length-p-1248856.html?p=IH111511352354201706 PS: Flat head screws are not visible in the photo because they were out of stock.
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