Calctronics Mod Apk V1.21 (paid).apk May 2026

: Support for passive filters like RC and RL, and active Sallen-Key filters (Butterworth, Chebyshev, and Bessel up to 2nd order).

: Calculators for both astable and monostable 555 timer configurations. Calctronics Mod APK v1.21 (Paid).apk

: Improved stability and updates to support Android SDK 36. : Support for passive filters like RC and

The application contains the following key features and calculation tools: Electronics Design Tools and active Sallen-Key filters (Butterworth