PCC88 7DJ8 Tungsram Hungary 1971 NOS Platinum Matched Quad ECC88 6DJ8 E88CC sub

Platinum Matched Quad (four tubes) PCC88 / 7DJ8 made by Tungsram Hungary in 1971.

These are real NOS tubes, and they can be used like ECC88 / 7DJ8 / E88CC / 6922 substitution in many amplifiers, DACs and preamps.  

This pair is really carefully tested and closely matched by plate current on calibrated Metrix U61B tester from big batch of 100pcs factory sealed master packs.

Very good sounding PCC88, one of the best.