-
We are still testing whether cheap op-amps from eBay match the specifications expected for an LM358 device. We are doing this to learn whether the parts are fake or not; and also to gain understanding of an op-amp’s data sheet In part 1 we tested the op-amp’s output range (output swing) and slew rate. In
-
The ultra-cheap components available on ebay are a constant temptation, and perhaps like many of you, I took a risk on buying a cheap batch of fifty LM358 operational amplifiers for only $2 USD. http://www.ebay.com/itm/291659048055 As with all eBay purchases the immediate concern is, are these components fakes?(Answer: probably yes) I thought it would be
Popular Posts
An Easy, Battery-Free Guitar Input for Your SoundcardJanuary 13, 2026
A very low cost GaN charger for your bench.January 17, 2026
A Simple Arduino Metal DetectorFebruary 14, 2019
A Beginner's Two-Component Crystal-Style Wi-Fi DetectorDecember 12, 2025
Building Your First Tesla Coil: Tips and TricksFebruary 20, 2017
Discrete 32.768kHz crystal oscillator: Attempt 2.November 28, 2025
Silicon Junction 