Hackaday

LED Tester Also Calculates Resistor For Target Voltage

[mircemk] built a slick-looking LED tester with a couple handy functions built in. Not only can one select a target current to put through an LED, but by providing a target voltage, the system will ...
Hackaday

series resistor

[mircemk] built a slick-looking LED tester with a couple handy functions built in. Not only can one select a target current to put through an LED, but by providing a target voltage, the system will ...
Electronics Weekly

1,200V PXI or PXIe programmable resistors

Pickering Interfaces has announced a family of 1,200V programmable resistor modules in a single-slot PXI or PXIe form factor. 40-230 is the PXI series, and 42-230 boards have a PXIe interface* – there ...
Electronics Weekly

Programmable resistors to put hardware-in-the-loop

Pickering Interfaces, has announced a family of one-slot PXI and PXIe programmable resistor modules that can handle 2A, 200V or 15W. Models 40-254 (PXI) and 42-254 (PXIe) come in 28 variants, ...
EDN

Y-factor and antenna testing

The properties of an amplifier can be tested along the lines of the following sketch. Typically, this technique would be applied to an RF or microwave amplifier, but this technique's additional ...