Bulbs - audio electronic parts

Regular price
$19.99
Sale price
$19.99

Vintage New Old Stock (NOS) 5687 tube.

Pricing: 

Grade A (top 10%) : $100 per unit with 30 days warranty. 
Grade B (premium) : $80 per unit with 30 days warranty.
Grade C : $59.99 per unit with 30 days warranty.