Ultra rare genuine Telefunken VF14 tube for Neumann U47 mic. Tube codes: 09 48.00 H / 3848 (old lettering) / 928 (on bottom / socket) = Early 1948 production labeled “RöW. Bln.” = Röhrenwerk Berlin = Telefunken Tube Factory Berlin. Manufactured 9^th Week 1948, first batch (00).

Fully transparent and complete tube test report including test curves see second picture. Print-out of test report is always included.

Test classification: NOS / HI-END = test results ≥ 100% (green). Tube is used and clearly shows signs of wear and tear - see photos - but fully complies to or even exceeds all original manufacturer’s specs. See test report.

Tube was tested with RoeTest V11 tube tester, invented and constructed by Helmut Weigl. The RoeTest is the worldwide most professional, precise and modern tube tester. It is fully computer controlled and measures all crucial tube data like shorts, emission, transconductance, amplification curves, gas / vacuum and many more tube values under various real life and full load conditions according to the specs listed in the original manufacturer’s tube data sheets. This guarantees real, honest and comparable test values.

Your satisfaction is very important to me. I offer a full take-back with complete refund within 30 days after delivery if you are not satisfied with the tube.

Conditions for a take-back: Tubes must be returned unused except a short test, of course and completely undamaged. Shipment back to me will be made on buyer’s risk only. Money-back transfer for take-back will only be made via Paypal or Ebay after the tubes have safely arrived back here.

Tubes are sold as is and in current state / condition. I do not offer any guarantee or warranty. Shipping on buyer's risk only! I will pack the tubes very, very carefully and will make a packing documentation / photos. Only fully insured shipping with DHL / Deutsche Post and with shipment tracking. No exceptions!

Payment: Only in advance via Ebay or Paypal within 5 days after auction ending.

I ship worldwide. Shipping costs will vary accordingly to your destination. I will combine shipping, of course.

Please be aware that shipping to international destinations especially to destinations outside the EU will be expensive or even not possible and the shipping time / duration will possibly be much longer.

PLEASE ASK FOR THE SHIPPING COSTS THROUGH THE EBAY MAIL SYSTEM BEFORE PAYING - I WILL SEND YOU AND UPDATED INVOICE WITH ACTUAL SHIPPING COSTS TO YOUR COUNTRY VIA EBAY AND YOU CAN PAY THEN!!!

Many thanks for your interest.