Here is an awesome single of rare high grade Telefunken E88CC gold pin tube. Please look at all actual item pictures carefully to know about detail of item.  Will be well packed and insured. 

Tube tested from : 6922 position by Amplitrex 1000

Results 1 : 117% Emis 107% GM

Results 2 : 134% Emis 121% GM

Thanks again for looking.