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Definition of "5840":
The 5840 vaccuum tube is a subminiature pentode tube. According to David Royer of Royer Labs, "The 5840 tube is electrically similar to the AC701K tube used in such microphones as the Neumann M-49." Royer used the tube in his MXL 2001 tube mod, in both the Mojave Audio tube mics, and in the R-122V tube ribbon. These were not the first uses of the 5840 in condenser mics, though; for example, see the Altec Lansing M-20, which was released in the mid-1960s.
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side-address large-diaphragm tube multipattern transformer-coupled dual-diaphragm ef732 center-terminated condenser m7 single-backplate ami thiersch telefunken bv8lp pencil-mic detachable-capsule plate-loaded hybrid-mic variable-tube-voltage dual-voice k67 hpf jensen alctron dual-backplate spherical-capsule small-diameter ribbon active-ribbon 6j1 neodymium tamura end-address cathode-follower nickel-diaphragm ammo-box stereo mid-side xy-stereo blumlein dual-tube made-in-usa pressure-gradient k47 offset-ribbon
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Find mics tagged '5840 OR:'
side-address large-diaphragm tube multipattern transformer-coupled dual-diaphragm ef732 center-terminated condenser m7 single-backplate ami thiersch telefunken bv8lp pencil-mic detachable-capsule plate-loaded hybrid-mic variable-tube-voltage dual-voice k67 hpf jensen alctron dual-backplate spherical-capsule small-diameter ribbon active-ribbon 6j1 neodymium tamura end-address cathode-follower nickel-diaphragm ammo-box stereo mid-side xy-stereo blumlein dual-tube made-in-usa pressure-gradient k47 offset-ribbon
