6CA4 = EZ81 = U709
All our tubes are computer tested at the highest standards.
We offer a 3 months warranty from shipment date.
We will in no way be held responsible (financially or otherwise) for any damage caused by the misuse of tubes sold by us. It is the sole responsibility of the customer to always refer to the equipment manufacturer with regards to proper tube replacement and,if required, biasing adjustment to be correctly set up by a qualified technician only.
Pricing is for one tube.