A tube was considered acceptable/new/ passed standards if it tested between the specified minimum and maximum on a tube data sheet or the minimum value specified on the tester (tv7 is minimum is 65%).
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Toroid Cobalt Amorphous Core. Extra low Hysteresis loss, excellent inductance per turn over wide frequency range and low DCR makes it best core material for low level signals with exceptional transient response.
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BEST SOUNDING, BEST MADE and MOST VALUABLE and RARE out of ALL the EF86 Amp and Audio tubes. It would not be a stretch to say that the U 67 defined the sound of the '60s. 2 X (BALANCED PAIR) -.
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BEST SOUNDING, BEST MADE and MOST VALUABLE and RARE out of ALL the EF86 Amp and Audio tubes. It would not be a stretch to say that the U 67 defined the sound of the '60s. 2 X (BALANCED PAIR) -.
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Scratches and stains due to being from the 1950s.
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Uncased, for mounting inside a microphone. It can be used with other microphone output circuit topologies requiring a 9.0 : 1 turns ratio. Employing a hum-bucking design, its capability of rejecting stray magnetic interference is good.
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BEST SOUNDING, BEST MADE and MOST VALUABLE and RARE out of ALL the EF86 Amp and Audio tubes. It would not be a stretch to say that the U 67 defined the sound of the '60s.
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♪[Great Compatibility] Our shock mount is compatible with Neumann microphones, like U87 Ai, U89 i,TLM 67, TLM 193, TLM 127 and TLM 170. ♪[Anti-Vibration] This mic holder is designed for mounting recording Neumann condenser microphones for the purpose of isolating or reducing the physical vibration, floor, and stand noise effectively.
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