A substantial collection of 15 premium vintage Telefunken tubes, all manufactured during the golden era of European electronics in West Germany. The highlight of this lot is a group of 10 authentic Telefunken EF804 audio pentodes, highly prized by studio engineers for vintage microphone preamplifiers like the legendary Telefunken and Maihak V72 and V76 modules. Every single one of the 10 EF804 tubes features the iconic molded Telefunken Diamond logo stamped directly into the glass bottom between the pins, guaranteeing authentic West German production. Nine out of the 10 EF804 tubes retain their original paper selection stickers from DISA Elektronik (Herlev, Denmark), meaning they were originally acquired for high-end professional laboratory and measurement instruments. Exactly 1 of the 10 tubes is a standard Telefunken diamond-base production without the DISA label. Complete Lot Inventory: 10x Telefunken EF804 Pentodes (9 with DISA Denmark labels, 1 standard; all 10 have bottom glass diamonds) 3x Telefunken ECF80 Triode-Pentodes 2x Telefunken EF80 Pentodes Condition and Packaging: These are New Old Stock (NOS) / unused vintage items pulled from careful long-term storage. The tubes are completely untested on an electronic valve tester. However, because they are pristine, unused NOS stock that has been stored exceptionally well over the decades, there is no visible or structural reason they will not function perfectly. These do not include their original retail Telefunken paper boxes. Instead, they are packed securely in plain protective cardboard storage boxes. Shipping: Free Worldwide Shipping from Armenia. The lot will be meticulously wrapped in thick bubble layers and packed inside a robust outer box to guarantee these rare, fragile glass components reach you safely anywhere in the world. Fully tracked and insured.