Download of AktivFilter 3.2.4 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program's installer is commonly called AktivFilter.exe or Filter.exe etc. The program belongs to Education Tools. The actual developer of the program is SoftwareDidaktik. The most popular versions of the software 3.2, 3.1 and 3.0. You can set up this PC software on Windows XP/Vista/7/8/10/11 32-bit.
From the developer:
AktivFilter is a program that enables you to design active filters which are tuned on the operational amplifier and on the standard series (E12, E24, E48, or E96) of resistors and capacitors. It supports many special high-quality audio opamps, which are used in audio electronics - in consumer products, studio equipment and high-end equipment.
You may want to check out more software, such as Wintree, f x -Viewer or FSAcars, which might be related to AktivFilter.