Scanner Vibrato is a virtual effect plug-in that aims to recreate the scanner-vibrato effect from a well-known tonewheel organ.
It is modelled closely on the original scanner-vibrato, so it offers the same features (and flaws), perfectly preserving the character of the original effect. However, Martinic Scanner Vibrato is more flexible; you can adjust the rate, depth, and even stereo width. And best of all, you can apply Scanner Vibrato not only to organ sounds, but also to guitar, synthesizer, or whatever sound you like.
Be sure to grab yourself a copy of Kee Bass, our string bass simulator from the '60s.
Kee Bass is free and you can get it right here: https://www.kvraudio.com/product/kee-bass-by-martinic