https://www.instructables.com/id/low-frequency-audio-amplifier-using-the-LM386/

Low Frequency Audio Amplifier Using the LM386: The integrated chip LM386 is a low power audio frequency amplifier requiring a low level power supply .

https://en.wikipedia.org/wiki/Amplifier

An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the power of a signal It is a ...

https://www.electronics-tutorials.ws/amplifier/frequency-response.html

Electronics Tutorial about Frequency Response of Amplifiers and Filters and the ... points respectively were the circuits gain falls off at high and low frequencies.

http://www.eoc-inc.com/femto/DLPVA/dlpva.htm

Low frequency switchable gain voltage amplifiers exclusive in US from EOC.

https://electronics.stackexchange.com/questions/33878/very-low-frequency-instrumentation-amplifier

Like The Photon says, they work down to DC, it's just that most customers don't use them for those very low frequencies, so they don't publish ...

https://aip.scitation.org/doi/full/10.1063/1.3605716

Almost all low noise voltage preamplifier suitable for application in the field of Low Frequency Noise Measurements (either commercially available or proposed  ...

https://www.youtube.com/watch?v=f2uaKF0ej6M

Nov 30, 2010 ... Small Low-Frequency AmplifierA low-frequency amplifier is very easy to assemble not only for an experienced electronics professional, but ...

https://www.nature.com/articles/194076a0

THE properties of the amplifier to be described are entirely due to the type of transistor used, and the purpose of this communication is to report on its suitability ...

http://www.ti.com/lit/ug/tidu607/tidu607.pdf

Low Frequency RF Amplifier Solution. TI High Speed Designs. Circuit Description . TI High Speed Designs are analog solutions created by TI's analog experts.

https://onlinelibrary.wiley.com/doi/pdf/10.1002/ecjb.4420680610

Translated from Denshi Tsushin Gakkai Ronbunshi, Vol. 68-C, No. 3, March 1985 , pp. 224-231. CR Low Frequency Tuned Amplifier Circuit with High. Selectivity.