These are the premium version of the Mullard CV4024 (12AT7) with the plain white shield near the top. These are excellent sounding tubes.
I have one NOS quad, which I will split into pairs. Come in white boxes.
Price: quad - $150.00
Price: per pair - $75.00
Payment: PayPal (add 3%)
Shipping: quad - $12.95 USPS Priority
Shipping: pair - $6.95 USPS Priority