I am using KiCad 9.0 on a few of my Debian workstations ('charisma' and 'proviso') for designing circuit schematics. In future I hope to expand into doing PCB design too.

See John’s KiCad hotkeys for some notes about how I have configured my KiCad hotkeys. My hotkeys are a minor modification of hotkeys designed and published by Pat Deegan, see here for details: Improve Your KiCad Productivity With These Considered Shortcut Keys.

Components

LED

To add an LED choose Device -> LED in the symbol chooser. Then click properties and open Simulation Model and choose Diode.

Maxitronix 30in1

30in1 transformer

You can model the transformer as two 960 mH inductor coils connected in series. Pin 18 on top, pin 19 in the middle, pin 20 at bottom.

30in1 earphone

You can model the earphone as an 8 nF ceramic cap in series with a 100 Ω resistor.