Spring Tube Retainer for 6550 and KT88Spring Tube Retainer for 6550 / KT88, nickel finished€1.72 Includes 22% VATIn stockAdd to cartProduct OverviewSpecificationManufacturerTube Amp DoctorCategoryTube retainersTube socketOtherSKUTR-LIn stockAdd to cartCeramic Octal tube socket with solder lugs S8C-1€2.59 Includes 22% VATIn stockAdd to cartCeramic Octal socket with solder lugs S8C€2.22 Includes 22% VATIn stockAdd to cartOctal ceramic socket with gold plated solder lugs S8C-G€3.79 Includes 22% VAT