we pride ourselves on a proprietary value-added complete refurb screening and deox process, and free postage!
also be sure to check out our official site! new part numbers added daily including true nos sealed box rarities
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1 vintage old stock siemens germany 6267 ef86 audio preamp mic tube, several available
fat bottle desireable old production type w/ authentic siemens germany glass mark in base
carefully curated from collectors overseas and twice tested, includes box
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full amplification test 100 % mutual gm (65%) and very useful life test pass! w/ no meter movement
our unique gm output test applies real world circuit voltages and has an impeccable gas and leak test
ships fast well packed worldwide ~ authentic vintage hifidelity audio curation by caliacoustics
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some hifi apps for ef86 6267 include:
65 Amps Monterey - Dr. Z Route 66 - Dr. Z Z-28 - Eastern Electric M520 - Matchless C-30, SC30
Matchless DC-30 - Soundelux U99 - VOX AC30 Heritage Bottlehead Tube Repro 2009 Brauner 
VM1 mic Eastern Electic M520 amp Lawson L47MP Manley baby valve mic Microtek UM92.1 mic 
Neumann U47 mic Neumann U67 mic Quad II Vox AC10 + more