Famous Telefunken diamond tube <>
Typ : E188CC 7308 = ( CCa 6922 E88CC )
Produced from : TELEFUNKEN ULM/Donau
Year: 1963
CONDITION : mint or NOS tubes
MARKS: Diamond <> bottom
CODE : U8003301D
Test: tubes test 16/16 +16/16 mA ( 100=15± 0,8mA )