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D.W. FEARN
VT-15 Recording Channel
13
Mic Input 150 ohms
Input Load
Impedance 1.5k ohms
Minimum Input
Level -65 dBm nominal
Maximum Input
Level @ 20 cps -30 dBm without pad
-5 dBm with 20 dB pad
Instrument Input impedance 1 Megohm
Line Input
Load Impedance 40k ohms
Maximum Line Input
Level @ 20 cps +25dBm (+35dBm with pad)
Gain <60 dB optimum
(capable of 75dB)
Frequency
Response ± 0.25 dB 20 cps to 20 kc
± 0.5 dB 11 cps to 28 kc
-3 dB @ 0.5 cps & 50 kc
THD + Noise <0.25% 20 cps to 20 kc
Intermodulation
Distortion SMPTE: <0.80%
Signal to
Noise Ratio 72 dB typical operation
Equivalent
Input Noise -124 dbm typical operation
Output low-Z, transformer balanced
Maximum
Output Level +22 dBm unterminated
1 .
SPECIFICATIONS