Auction is for two (2) tubes, platinum matched pair within 5% of rare PCC189 7ES8 made in EI tube factory in Yugoslavia back in 70s with Philips tools and under Philips quality control.
They are very, very quiet in RIAA preamps, thanks to the heaters wounded in different way than ECC88.
These tubes are compatible with ECC88 / 6DJ8 / E88CC / 6922 in almost every application and you can often found them relabeled ECC88 / 6DJ8 Philips Holland or Siemens Germany.
I have few boxes of 100 pcs PCC189 / 7ES8 made back in 70s in EI Nis tube plant for export. These are premium grade, specially selected and with exceptional quality control for export under Philips, Siemens, Valvo and Telefunken brands. That's why they don't have prints on each tube.
Geniune IP Philips code for PCC189 / 7ES8 etched on every single tube together with production date and EI tube factory code.
All pairs I have listed for sale are really perfectly matched with exact or almost exact all four triode sections due to big qty I have in stock.
They are variable mu triodes, perfect for use in tube audio compressors as well.