Pair of high quality nab hub adapter polished aluminium For Revox Akai Teac etc | eBay
Nagra T Spares - NAB Adaptor | #312057998
QGB - Nagra
Amazon.com: 10" Full Aluminum Blank Tape Reel to Reel Recorder Empty Spool for Studer Revox Nagra Black Silver Gold Blue Red Pack of 1PC (Black) : Electronics