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SR865A(4 MHz Lock-In Amplifier)
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SR860(500 kHz lock-in amplifier)
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SR810&830(100 kHz lock-in amplifier)
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SR844(200 MHz lock-in amplifier)
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SR850(100 kHz DSP lock-in amplifier)
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SR124&2124(Analog lock-in amplifiers)
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SR510&SR530(100 kHz lock-in amplifiers)
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DG645(Digital Delay Generator)
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DG535(Digital Delay Generator)
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DB64(Coax Delay)
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SR560(Low-noise voltage preamplifier)
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SR570(Low noise current preamplifier)
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SR550(FET input preamplifier)
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SR551(High impedance preamplifier)
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SR552(BJT input preamplifier)
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SR554(Transformer preamplifier)
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SR555(Current preamplifier)
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SR556(Current preamplifier)
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SR445A(Current preamplifier)
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DS335(3 MHz function generator)