Le journal technique de Bell System . S3^ -> .» ^ ^^^i Fig. 5 — vue éclatée de l'électrovanne J-7. •18 THE BELL SYSTEM TECHNICAL JOURNAL, MAI 1957. Figure 6 —
The 'Microamp'
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Valves, sixty plus larger valves including RCA 6J7, Mullard ECC35, Brimar 6SN7GT, 6J7GT, 6V6GT, Tungsram 6V6GT, Westinghouse JAN 6L6G and many others, some duplicates, all untested
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6Ж7, Tube 6Ж7; Röhre 6Ж7 ID18865, Vacuum Pentode | Radiomuseum.org
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6J7, Tube 6J7; Röhre 6J7 ID2098, Vacuum Pentode | Radiomuseum.org
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