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Description
NOS Matched Pair ECC81 Telefunken 12AT7 Diamond Bottom Same Codes West GermanyAuction is for TWO tubes (ONE matched pair) of rare NOS Telefunken ECC81 12AT7 Diamond bottoms, thick ring getters, the same date codes, made in Berlin plant, West Germany. Perfectly matched and balanced, very strong results, as shown on the photos. They come from original Telefunken service pack with spare tube set for Telefunken professional measurement device. Platinum matched pair, carefully matched by plate current and transconductance and tested
Auction is for TWO tubes (ONE matched pair) of rare NOS Telefunken ECC81 / 12AT7
Diamond bottoms, thick ring getters, the same date codes, made in Berlin plant, West Germany.
Perfectly matched and balanced, very strong results, as shown on the photos.
They come from original Telefunken service pack with spare tube set for Telefunken professional measurement device. Platinum matched pair, carefully matched by plate current and transconductance and tested in preamplifier to be sure working as intended with no issues at all.
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4.8 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Comprehensive book for beginners Spanish class
Format: Paperback
Needed for a Spanish 101 class. Didn’t disappoint.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
★★★★★ 4
Fun way to learn Spanish
Format: Kindle
I thought that the book was well laid out. They start off by presenting basic topics in a logical fashion. It progressively get more complicated and provides good examples and practices that allow you to apply the topic you are learning. Overall good book for someone looking to learn Spanish.
I received a free copy of this book and am voluntarily leaving a review.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
★★★★★ 5
Really helpful learning guide
Format: Paperback
This book is well organized and written. I like structure and an overview before starting to learn. This books excels at both. And the free on lib companion is fantastic. You can read the words while listening to the pronunciation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
★★★★★ 5
Easy
Format: Paperback
My husband loves it and it has really helped him with being able to hear the language spoken by using the QR codes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
★★★★★ 5
Great book!!
Format: Paperback
Great book and easy to understand. The author put a lot of thought and caring into writing this handbook.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
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