Actual pictures. NOS or slighty used 6n26p tubes. Made in september 1966. One tube or more.Tested with L3-3 tubetester at: Up=150V; Uh=6.3V DC; Ug=-1.4V
Results:
1. 1) Ip=17.2mA , S=11.0ma/V
2) Ip=12.4mA , S=8.9ma/V
2. 15.6 9.5
13.6 9.0
3. 14 9.2
13.8 9.0
4. 16.4 10.0
13.2 9.0
5. 13.8 8.8
16.8 10.8