Notes:
* Connect J2 and J3 to an Avo-meter set to 50µA range:
* Switching SW2 the four input ranges will be multiplied by 5
* Total fsd ranges are: 10mV, 50mV, 100mV, 500mV, 1V, 5V, 10V, 50V
* Set R11 to read 1V in the 1V range, with a sine wave input of 1V @ 1KHz
* Compare the [...]
This project was requested by some correspondents wishing to setup their home-cinema set adjusting all the loudspeaker outputs to the same level when heard from the listening position. In practice this device is a simple (though linear and precise) ac millivoltmeter, using an existing multimeter set to 50 or 100µA fsd with the probes connected [...]
As I was developing my IR Extender Circuit, I needed to find a way of measuring the relative intensities of different Infra red light sources. This circuit is the result of my research. I have used a photodiode, SFH2030 as an infra red sensor. A MOSFET opamp, CA3140 is used in the differential mode to [...]
Obsession Theme by Lorelei. Coded by Cheap web hosting and Hostmonster.
Featuring Liza Kliko's artwork in the header.
