Groove Tube Gold Series GT-KT88-C2 Matched Power Tubes
GT-KT88-C2 Duet An exact replica of the famous UK made Genelux KT88, it has huge power (700vdc on the plates, more than 50 watts per tube!) Made by the largest tube factory in China, a welcome option for higher powered amps like VHT and HIWATTS. The newest version of the classic European power Pentode, made in one of our Chinese affiliate factories.

Close attention to the details of processing and finding correct original materials have made this tube close to an original GEC KT88

If your looking for a "standard", then this is the tube for you.