Phibes is free VST plug-in for Windows PC.
Phibes electric organ tries to capture the sound of those sweet sixties organs. It is definitely no Hammond B3 or Vox Continental but rather some obscure and cheap east-european imitation of them.
It has 9 drawbars with five different tones and, independent vibrato, tremolo and rotator effects and staccato mode. Even though Phibes organ is quite simple instrument, it is very CPU-intensive with over ten oscillators and filters.