For Reel -to- Reel Tape Recorders ofREVOX -PR99 A700 A77 B77STUDER -A807 A810 A67 B67. Trident Base NAB Adapter/Trident Adapter. 2x Trident Base NAB Adapter. Trident Base NAB Adapter Trident Screw Set：.
For Reel -to- Reel Tape Recorders ofREVOX -PR99 A700 A77 B77STUDER -A807 A810 A67 B67. Trident Base NAB Adapter/Trident Adapter. 2x Trident Base NAB Adapter. Trident Base NAB Adapter Trident Screw Set：.