The 6P3S output beam tetrode are miniature devices enclosed in glass bulb and are provided with a octal (8-pin) base, rigit leads and an indirectly heated oxide-coated cathode. Type: 6P3S. Made in USSR.
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(6P3S (6П3С) Tetrode 100% New Item. Lot of 4 (Matched & Balanced Quartet ). The tubes are new and never used. We test our tubes from this type on High-End Military Tube Tester: L3-3. less expensive).
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eBay
Matched with a new Maxi Matcher 2.
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Matched Quad 6L6GT Valves Tubes. Brimar Foreign.
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Fully matched and tested. Ideal for collectors and enthusiasts alike, these valves are a classic addition to any audio setup. With their precise engineering and adherence to historical audio standards, these 6L6GC model tubes promise an authentic listening experience.
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FOR SALE 2 TANTAL 6P3S NEW NOS TUBES.
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eBay