Russian output beam tetrode 6P6S tube. Equivalent to the 6V6 / 6AY5. Reflector factory. OTK marking.

Name: 6P6S

Type: Output beam tetrode

Application: LF power amplification

Cathode type: oxide, indirect heating

Envelope: glass

Mass, g: 40

Filament voltage, V: 6,3

Filament current, A: 0,41-0,49

Anode voltage, V: 250

Anode current, A: 0,033-0,057

Anode power, W: 13,2

Grid1 voltage, V: minus 12.5

Grid2 voltage, V: 250

Steepness, mA/V: 3,0-5,2

Reverse grid current, uA: 2

Microphonic noise, mV: 500

Socket type: rsh5-1