2 tubes  E88CC 6922 matched pair

Philips Miniwatt SQ  tubes with high emission

High emission and well matched. This means tubes have strong emission and will work for man hours.

Good tube starts with gm 9,0mA/V

Test result S gm test : 
12,4 + 12,2 and 12,5 + 12,3 mA/V

Measured with RoeTestV11