New in bulk packaging, prototypes!!!
These tubes are specially selected prototype versions, made by Tesla, Czechoslovakia. They can be used in almost any ECC88 / 6DJ8 application, B9A pinout
PCC189 Tesla 7ES8 double triode, all the same codes
Gray shield and silver shield versions
Click to see all ECC88 6DJ8 E88CC 6922 in stock
Can the PPC 189 be used in an Audio application, I have an Audio Research SP10 preamp and wonder if this tube is compatible with 6922 used in my unit?