Brand Spanking New, MINT NOS NIB 1972-73 Amperex/Philips ECC82 Dimple Disc Getter Tubes with Philips Label. Pairs have *Heerlen Holland Production Date Code Gf9 42I2 or 4213 (first letter 4xxxx, 4=delta or left triangle for Heerlen Plant). Boxes and labels are a bit fragile but the tubes are pristine. One of the most musical and desirable tubes in the 12AU7/ECC82 family.

*Heerlen plant tubes were sold with different labels like Amperex, Miniwatt, Philips, Bugle Boy and also relabeled by various Philips associates or companies owned by Philips like Valvo, Mullard, La Radiotechnique RTC, Siemens, Adzam etc. Etched date codes tells the origin of the tube.

Tested and matched on Hickok 752, just recently calibrated and modified by Hickok expert to all Solid State to eliminate drift.

Matched Pair = $120.

• Brand Spanking New, MINT NOS NIB 1972-73 Amperex/Philips ECC82 Dimple Disc Getter Tubes with Philips Label. Pairs have *Heerlen Holland Production Date Code Gf9 42I2 or 4213 (first letter 4xxxx, 4=delta or left triangle for Heerlen Plant).