This is my flash modification project. The flashes were cheap and I installed a power control. Will make it a lot easier when taking portraits. If you interested in the project yourself please visit my blog http://edgeofphotography.blogspot.com/ These old flashes are still very useful and can be bought dirt cheap on ebay. You can check out Strobist for more information about this stuff.
yeah, you can get a lot of the vintage flashes on ebay. I got some of these for as little as eight dollars. Now I can use them off camera flashes with a wireless tirgger and adjust the light intensity. Its a little more portalbe than carrying around a big light rig.