The tubes were intended as a replacement but were not used.
The plate current and the transconductance as well as the grid current of both tubes have been tested and meet the enclosed test report. The grid current test value shows the excellent vacuum over a long period of time for this 2008 series. According to experts, this series range should be the best in terms of sound. The tubes have smooth plate sheets.
Please note that the top of the box has scuff marks.
Shipping fully insured.