TransistorAmp 2 is a free software for the design of transistor amplifiers with one bipolar juction transistor. With the software you can design a transistor amplifier in common-base, common-emitter, or common-collector configuration. TransistorAmp 2 has a Spice call-interface which can be used to test the designed circuit with a circuit simulation program, e.g. LTSpice.
It helps you make electronic circuit diagrams and export them as images
It allows you to calculate resistors and generate its color code.
Utility that allows you to find the value
Build circuits with resistors, light bulbs, batteries, and switches.
It consists of twelve activities to teach basic solid-state circuit concepts.