Log-in
(!) (Recommended Pair) 6688A=E180F Amperex PQ USA NOS triple mica 1968 and 1974 same build (13.2ma and 14.0ma)

(!) (Recommended Pair) 6688A=E180F Amperex PQ USA NOS triple mica 1968 and 1974 same build (13.2ma and 14.0ma)

$ 29.99

Sorry, this product is sold out!

1 pair) 6688A=E180F Amperex PQ USA NOS triple mica 1968 and 1974 same build

1 tube) 14.0ma Gm=16,500

1 tube) 13.2ma Gm=16,200

 

Good mA range 10-13ma

Good Gm range 12,000-15,000

 

- best US made 6688

- 10,000 hour 9-pin frame grid broadband Pentode

- Variant is 7737

 

for:
- Supratek Chenin, Cortese preamp
- Yamamoto 06-3 2010

See more: vacuum tube
Scroll to top