6N8S /6SN7 /1578  MELZ TUBES  METAL BASE / OTK / NEW  /TESTED

                                                      LOT OF 1 PCS.


The tubes ARE NEW although some brass coating cracks or small scratches are visible. The fact that these tubes are  68 years old is an honorable excuse. All tubes were tested both on tester and audio amplifier.The sound quality is perfect.

                                           TESTED with L3-3

All the tubes were tested in the lab and the technical data are in accordance with the producer's parameters.

The tubes was tested by profesional engineer.



Name: 6N8S
Type:  Double triodeApplication:
LF voltage amplification
Cathode type: oxide,indirect heating
Envelope: glass
Filament voltage, V:  6,3
Filament current, A:  0,55-0,65
Anode voltage,    V:  250
Anode current,    A:  0,0055-0,0115
Anode power,     W:  2,75
Grid1 voltage,     V:  minus 8
Steepness,    mA/V: 2,1-3,1
Reverse grid current, uA: 2
Microphnic noise, mV: 150
Gain: 18,0-23,0
Socket type: rsh5-1