Holland Made Philips SQ E180F 6688 tubes. Triple Mica gold pin construction!
6688=E180F 10,000 hour 9 pin broadband pentode. Recommended for:
Nobsound- here is a link to a video made by one of our customers after he received his matched pair for his Nobsound headphone amp:
Supratek Chenin Cortese preamp
Yamamoto 06-3 2010
$29.99 per tube
Regardless of the branding (Amperex, Valvo, Siemens, Calvert etc) the Holland made 7119=E182CC (although not a direct substitue but similar to 12BH7 with a 10,000 heater) is a premium quality twin triode. An excellent substitute for the 7044, 5687 and 6900.
Perfect for the following equipment: Modwright preamp. Audio Note: DAC 4, Jinro amp, L3, M3. Various Manley units, Ray Samuels Raptor, B52. Aria VW5XL. Modwright Sony DVP999ES. Audion 845 Black Shadow. Bottlehed Smack.
Enter qty 2 for a matched pair. Various brandings, all are Holland made. $64.99 per tube