There are many versions of Jimi Hendrix's "Hear My Train a Comin'," and I highly suggest you check out as many of them as you can. One of my favorites is the solo 12-string acoustic version he plays in the Jimi Hendrix movie and on the Jimi Hendrix Blues record. This tune was a staple of his live gig and fortunately for us, he recorded a lot of those! The interesting thing is that many of the versions are at different tempos and slightly different feels, although the theme remains the same.
Here I'm playing based upon one of the studio versions. Although not essential, I decided to use one of me and Jimi's favorite pedals, the uni-vibe. The uni-vibe is a chorus effect that gives the guitar the watery sound that we hear on my performance and everything that is quintessentially Hendrix. If you want to go full on Hendrix with your pedalboard, I highly recommend a fuzz pedal, uni-vibe, octavia, and wah. I must admit that's basically my pedalboard in a nutshell as well! :-)