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Line Output Transformer for Vacuum Tube Drivers
Model: JT-10K61-1M
- Distortion 0.007% type at 20Hz and +4dBu output level
- Wide bandwidth of -3dB at 0.04Hz and 60kHz
- Drives 600ohm loads to levels up to +23dBu at 20Hz
- Excellent time domain performance of DLP 0.2 degree type 20Hz to 20kHz
- Appears as 11kohm load to vacuum tube driver circuitry
Product Info
Tech Specs
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Jensen output transformers allow manufacturers to guarantee trouble free operation of their products when customers incorporate them into complex audio systems. Transformer coupled outputs work equally well driving balanced or un-balanced inputs and do not suffer from the stability problems encountered when connecting active balanced integrated circuit line drivers to un-balanced inputs with long cables. This transformer is designed for very high performance vacuum tube line output stages. Driving signals should be free of DC and source impedance under 1kohm. The split secondaries may be series connected for 4:1 with center-tap or paralleled for 8:1 operation. A fully enclosed channel frame is standard.
- Distortion 0.007% type at 20Hz and +4dBu output level
- Wide bandwidth of -3dB at 0.04Hz and 60kHz
- Drives 600ohm loads to levels up to +23dBu at 20Hz
- Excellent time domain performance of DLP 0.2 degree type 20Hz to 20kHz
- Appears as 11kohm load to vacuum tube driver circuitry
- Audio Transformer Type - Line Transformer
- Balanced to Unbalanced - Yes
- Spec Sheet available - Yes
- Operating Temperature (Maximum): 158 F
- Operating Temperature (Minimum): 32 F
- Balanced to Unbalanced: Yes
- Maximum Bandwidth: 60 kHz (-3dB)
- Impedance Ratio: 10k:600
- Input Impedance: 11.5 kohm (1kHz, 0dBu, test circuit 3)
- Voltage Gain: -13.4 dB (1kHz, 0dBu, test circuit 1)
- Magnitude response, ref 1 kHz: -0.01 (20Hz, 0dBu, test circuit 1, Rs=50ohm) and -0.37 (20kHz, 0dBu, test circuit 1, Rs=50ohm) dB
- Deviation from linear phase (DLP): +0.2/-0.1 degree (20Hz to 20kHz, 0dBu, test circuit 1, Rs=50ohm)
- Distortion (THD): <0.001 (1kHz, +4dBu, test circuit 1, Rs=50ohm), 0.008 (20Hz, +4dBu, test circuit 1, Rs=50ohm), <0.001 (1kHz, +4dBu, test circuit 1, Rs=50ohm) and 0.020 (20Hz, +4dBu, test circuit 1, Rs=50ohm) %
- Maximum Output Level: +23 dBu (20Hz 1% THD, test circuit 1, Rs=50ohm)
- Common-mode rejection ratio (CMRR): 114dB (60Hz, test circuit 2) and 80dB (3kHz, test circuit 2)
- Output Impedance: 113 ohm (1kHz, test circuit 4, Rs=50ohm)
- Primary DC resistances: 740 ohm (GRN to BLU)
- Secondary DC resistances: 42 ohm (ORG to RED)
- Capacitance at 1kHz: 300 pF (both to shield and case)
- Turns Ratio: 4.082:1 secondaries in series
- Breakdown Voltage: 250 Vrms (primary or secondary to shield and case, 60Hz, 1 minute test duration)
Transformer
172 kb
- Data Sheet
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Lowrance Sound Company, Inc.
2132 Nailing Drive
Union City, TN 38261
USA
(901) 885-4504
www.lowrancesoundcompany.com
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Jensen Transformers, Inc.
Model: JT-10K61-1M
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