Until now you've had to use a conventional lock-in amplifier to dig out signals buried in noise. And you've probably spent a lot of time solving problems inherent with conventional lock-ins. Like unwanted harmonic responses. Like phase instability with a tuned front end. Like overloading interference with a wideband front end. Like grounding problems. These problems are now history. There's a new tool available. Dynatrac. Dynatrac is no conventional lock-in. Using an entirely new approach—heterodyning—Dynatrac provides performance unmatched by conventional lock-ins at any price. Dynatrac has a tracking filter that eliminates tuning, phase-shift and harm onic response problems. Gives truly outstanding 2f performance. No one else has this feature at any price, Dynatrac's floating guarded front end, with its own isolated power supply, gives differential input with single ended con nections and eliminates ground loops. No one else has this feature at any price. Dynatrac has 100 nV fullscale sensitivity (100 pV resolution) with unsur passed noise performance. A wide range of optional preamplifiers provide fullscale sensitivity to 100 picovolts. Dynatrac has a precision tracking phase shift er and built-in sine oscillator. Dynatrac operates from .1Hz to 200KHz—but you don't pay for what you don't need. Dynatrac will also measure narrow band noise, and is calibrated for both the scientist (volts) and the engineer (decibels). No one else has these features at any price. Dynatrac's price? From under $1,600. Lock-in ampli fiers will never be the same. For complete information or to arrange a demonstra tion, write to ITHACO, Inc., Box 818-4, Ithaca, New York 14850. Call 607-272-7640.
For people who dig out signals buried in noise. A new tool.
Dynatrac No one else has i t . . . at any price. CIRCLE 9 4 O N READER SERVICE CARD
