In this review I will take a close look at the DROK DC to DC Step Down Buck Converter Module which uses a LM2596 Buck Converter IC The module also includes a digital voltmeter which can display either the input or output voltage. The output voltage is set by two push buttons. After fully testing […]
Review and Test of a cheap DC to DC Boost Converter Module which uses the XLSEMI Integrated Circuit XL6009. Several modules are tested under different input voltage and output load conditions.
New product review of a Zener Diode Analyser designed and manufactured by Peak Electronic Design Ltd. This is a nice little analyser which supports most Zeners, Avalanche diodes and reference diodes from 0V up to 50V. More details from web link below: http://www.peakelec.co.uk/acatalog/zen50-zener-analyser.html
Review and teardown of a Keithley Instruments model 225 Current Source which dates back to 1976. These units are still very accurate today, with an accuracy of ±0.5%. A range switch and 3 decade switches can provide a current output from 0.1 nanoamps to 100 milliamps.
Here we review two Time Electronics Ltd. DC Millivolt Source calibration units. They use a precision reference zener diode, low temperature coefficient resistors and thumb switches to select a precise voltage accurate to 1 Micro Volt. They have 3 ranges and an accuracy of ± 0.05%.
Review and teardown of the Thurlby 1905A Intelligent Digital Multimeter was designed and manufactured in the 1980’s by Thurlby Electronics Ltd. The meter is a 5½ digital manual ranging multimeter with keyboard programmable computing and data logging facilities. The basic accuracy is ±0.015% on the D.C. ranges.