To fund future projects I'm selling some of the more rare tubes in my collection.

The following sample quad was sold. But just inquire. I have similar in stock.

Up for sale is a NOS testing matched perfect quad of Mullard Blackburn XF2 EL34's.

Tube code is XF2 and date code is B8C4 with the single O getter up top.

The tubes were hand picked by me to be a tightly matched electrical quad. No gas, no leaks. Anode current 76-80mA and transconductance 10,6-11,0 mA/V.

These were made by Mullard. Labeled Amperex / Hewlett Packard (same print codes 827 on all four).

The tubes a shipped in a new box for convenient storage/protection.

Price is 500€ for the quad. I’ll take the PayPal fee, you pay the shipping.

Payment preferred via Paypal (in Euro’s).

Shipping:
All parcels are shipped with tracking number and signature upon receipt.

Shipping and handling costs are 40€ Worldwide.
I do not ship to countries where parcel tracking is unavailable (i’ll let you know before payment).

All questions via PM.