Can I build active filters with BJT instead of opamps? - Quora
High Pass Filter : Working and Its Applications - Semiconductor for You
Low Pass Filter Circuit for Subwoofer | Homemade Circuit Projects
Transistor Active High Pass Filter Circuit » Electronics Notes
audio - Single transistor buffer and low pass filter - Electrical Engineering Stack Exchange
Active Low Pass Filter - Op-amp Low Pass Filter
amplifier - How the low pass filter works in this circuit? - Electrical Engineering Stack Exchange
Simple 12 db low pass filter ∞ L.E.P.
Subwoofer filter using one transistor - Electronic Circuit
ElectronicsNotes on Twitter: "A simple one transistor high pass filter can be very useful when some attenuation is needed & there is no space left on the PCB. #highpassfilter #electronicdesign #circuitdesign #transistor
audio filter circuit : Audio Circuits :: Next.gr
A high frequency operating transistor coupling to a | Chegg.com
ElectronicsNotes on Twitter: "It is very easy to make a simple high pass filter out of a single transistor circuit stage. #highpassfilter #circuitdesign https://t.co/2hHxXL91OZ https://t.co/L58JP0UolS" / Twitter