Not too many of these come by the shop….they’re kind of rare. The cool thing about these amps is the vibrato. It’s real pitch-shifting vibrato. A lot of vibrato effects (like in a mid 60’s Fender amp for example) are actually tremelo (pulsating volume) as compared to vibrato (a shifting in frequency). If you ever get a chance to try one you must try it out! I was fortunate to have a customer bring this by to have it ressurrected. A really great amp..now I want one!