I also listened to them in my Audio Electronic Supply AE3 preamp and they sounded excellent
with no noise, hiss or other artifacts.
Best 6SN7 ever made with terrific flashing, foil getters and solid bases.
US Shipping is USPS First Class Mail with tracking; Priority Mail is also an option if you wish your tubes delivered sooner.
International sales shipping via United States Postal Service (USPS) First Class Mail/Package International depending on
destination. International tracking and insurance can only be offered if you purchase USPS Priority Mail
International for shipment.
Package weighs ten (10) ounces.
Combined shipping always welcome.