Underground 660_T flash Tags: Photo Flash Cameras Last response: November 16, 2008 2:06 AM in Digital Camera Share Anonymous June 8, 2005 10:36:31 PM Archived from groups: rec.photo.digital (More info?) While cleaning an some old camera cases, I cam across an old flash unit - Underground 660-T. Loaded some batteries in it and it appears to work like a charm. Unfortunately I cannot locate the instruction manual that it came with, and cannot find anything about it with internet searches. Does anyone know what the three slide settings (colored white, green, and red) on the front are for? Appreciate any information on this. George More about : underground 660 flash Anonymous November 16, 2008 2:06:17 AM I've had one for 30-35 years and it still works. Bought it in Rhode Island when I was in middle school. I have a user's manual I can scan and e-mail if you still have the flash. Just let me know at email@example.com. Cheers, Stew Can't find your answer ? Ask ! Publish Related resources Solvedgtx 660 oem flash with GTX 660 ti bios Forum SolvedGTX 660 faulty flash :( Forum Flash GTX 650 ti boost to GTX 660? Forum have a dell 660S, went to change the reolution, screen flashed, then came back on low resolution where almost everything too Forum More resources Read discussions in other Digital Camera categories Camcorders Digital Photography DSLRs Point & Shoot SLR ZLR Kodak Nikon Sony !