After I noticed this itemizing, I couldn’t assist however suppose “What a cool concept!”. An inverting audio amplifier with potentiometer adjustment in a DIP-8 ready-to-breadboard bundle! This might be so helpful when prototyping any audio-related initiatives. It doesn’t matter what, you appear to all the time want some acquire alongside the best way, and having the ability to simply plug in a ready-made resolution will save breadboard area and prototyping time.
By putting all of the parts in the identical footprint as a DIP-8 op-amp, you get all of the performance with out having to calculate and add all of the exterior parts mandatory. Delivering anyplace from +/-20dB of acquire (sure, it may well attenuate in addition to amplify!), this inverting op-amp is ideal when used as a last amplifying stage, as a pre-amp driving another circuitry, and even simply as inter-stage acquire steps between successive results.
It does require a bipolar provide. A easy approach to get a really clear, secure bipolar provide is to make use of two 9V batteries, with the damaging terminal of 1 related to the optimistic terminal of the opposite. This works as your “floor” or reference voltage, after which you’re left with exceptionally noise-free +/-9V provides for op-amps and different circuitry (because of Ben Krasnow for this tip!).
The documentation could be very clear and well-designed, with easy-to-read schematics and pinouts. The included op-amp isn’t specified however it’s probably one thing alongside the strains of a TL081 or the same high-quality audio op-amp. Having building-block elements like this in your drawer could make prototyping and testing a lot less complicated, and figuring out that it simply works can cut back complications when one thing does go mistaken!