The Mad Professor Mellow Yellow Tremolo is available now as a PCB -version. This means that you are able to get the same great sound with lower price. Mellow Yellow Tremolo gives you the early amp -like tones from the 50´s. In another words: soft swing to deep modulation with great playability regardless of the tremolo depth or speed. Mellow Yellow Tremolo can get extreme as well if needed and comes of course in a small footprint.
Check out the Mad Professor website for more info! http://mpamp.com.