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Universal Counter:
Typical frequency counter that built by electronics hobbyists. This counter can measure time periods and has communication interface, so that I named this "Universal Counter". (added 10/05)
Wave Captor
'SAKURA': This is a digital oscilloscope adapter, which is attached to the serial port of PC, and insulated them with photo-isolator. It acquires at 8 bits, fixed 10k samples/sec.
(added 10/05)
Ways to Optimize the Performance of a Difference Amplifier: AN-589 Analog Devices Application Notes (app note added 2/06)
This Application Note presents several ways to build and optimize the performance of a discrete difference amplifier. It also recommends amplifiers that will make the overall solution
cost/performance competitive with monolithic instrument amplifiers.
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