Philips 6ES8 ECC189 Vacuum Tube A Frame Riveted / Dimple Disk Getter Sutured Top NOS NIB Pete Fountain Tube Two is a bit

Tube Two is a bit microphonic and it is therefore recommended that this matched pair not be used in areas with excessive vibration

The disks are well-made and quiet with just a few pops and ticks here and there

The title basically says it all

They tested as follows: 66/38

new in box Westinghouse 6101 / 6101/CT tubes tested to spec on our Paul Hart-calibrated TV7/U

Philips 6ES8 ECC189 Vacuum Tube A Frame Riveted / Dimple Disk Getter Sutured Top NOS NIB Pete Fountain Tube Two is a bitThis new old stock, new in box Philips MADE, RCA BRANDED 6ES8 ECC189 tested to spec on our Paul Hart calibrated TV7 U. This tube has beautiful, crisp orange lettering; a sutured top, a riveted disk getter; A frame construction and 1Xb ^2d date provenance codes, respectively, meaning it was made at the Philips plant in Heerlen, Limburg Province, The Netherlands. I have played it in my Schiit Audio Vali 2 headphone amplifier and it sounded great. WE