Typically used in guitar amps and valve home amps to ensure secure output tube seating
All good guitar amps have these installed to ensure the tubes are held secure in the valve socket.
Tube retaining springs
Two top cap types, dome and flat
Dome caps have 32mm (when compressed) springs (2)
Flat caps have 35mm (when compressed) springs (2)
Absolutely brand new, no rust etc
Dome type 6x
Flat type 3x
When purchasing, please let us know which top cap style you prefer (dome or flat)
Tested as described in the description
This item is not returnable, UNLESS dead on arrival