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12AT7
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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/12AU7/Lc11bElz">12AU7</a></li> <li><a href="/facts/12AX7/0yXA6Hc9">12AX7</a> - includes a comparison of similar twin-triode designs</li> <li><a href="/facts/List_of_vacuum_tubes/twnefNwV">List of vacuum tubes</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="https://frank.pocnet.net/sheets/093/1/12AT7.pdf">12AT7 twin triode data sheet from General Electric</a></li> <li><a href="http://www.tubemaze.info/tag/12at7/">Reviews of 12at7 tubes.</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Tung-sol data sheets for EC92 and 12AT7/ECC81 dated January 1969 and January 1952 respectively <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> </ol>