That's funny because I'm a lurker over at the EJ forum! I never really post there because it seems like between you and Tommy you guys are THE authority on EJ's tone/rig. Anyways, back on topic I think this video is from the same time frame I believe and demonstrates Joe's early sound very well. I think I can spot a Vox wah, Boss delay, Fuzzface?, footswitch for the Red Vibratone...definately a nod to Hendrix/EJ/Beck on this one!
http://www.youtube.com/watch?v=rJ23SFHDu4E
Anyways welcome to the forum man!
'67 and '74 Fender Twin Reverbs, '74 Marshall 1987 lead mkII, Metro Superlead 100. Pedals from TC Electronic, Ibanez, Dunlop, BK Butler, Electro-Harmonix, Fulltone, Maestro/Gibson, Loopmaster switching, VoodooLab, Boss. Gibson and Fender guitars, Dimarzio pickups.