Pair NOS NIB RFT 12AU7A 6680 Germany Labeled "AMC Great Britain" 12AU7 - $48 - (East Montpelier, VT)
NOS Pair RFT (Rundfunk und Fernmelde Technik) 6680 12AU7A in original boxes. The 6680 is a heavy duty mobile rated 12AU7. Made in Germany. They are rebranded "AMC" and labeled "Great Britain". Measure very strong at 102/104 & 103/111 on my TV7-D/U (where 50 is minimum) - which is a good match. These are high quality and well regarded tubes. Shipping charges include insurance. RFT stands for Rundfunk- und Fernmelde-Technik - a group of state-owned technology companies in the former German Democratic Republic (East Germany). This company produced valves for Telefunken and Siemens and made the famous Siemens EL34. These valves are of very good quality and have excellent consistency.The RFT ECC82 was rebranded and used by just about every manufacturer under their own brand. I have seen these branded Brimar, Telefunken, AEG and Siemens to name just a few. The RFT was also re branded by CONRAD JONSON and used in many of its top line audio preamplifiers. The valve has a supreme openness and sound stage and offers high end audio performance. The character of the RFT is a tight bass with well-balanced mids, the top end response is clean and detailed.The RFT valve offers high quality performance that outperforms many expensive brands and is a first choice in many high grade audio sets up in this price range.
ADVERTISEMENT
From ebay.com - 1 month ago