EF806S Telefunken

Audio pre amplifier pentode
Availability: 2 in stock

Audio pre amplifier pentode equivalent to EF86

EF806S with special gray shield.

Testing data in AVO handbook
Ia = 3.2mA and Gm = 2mA/V

Measured for these tubes:
Tube 1: Ia = 3.3mA and Gm = 2.3mA/V - datecode U1005906U  
Tube 2: Ia = 3.2mA and Gm = 2.3mA/V - datecode U3115006U 

Price is for one tube. Two tubes available.

Datecodes: U1005906U or U3115006U made in Ulm in 1965