Hello, I Found an old Jessops (Uk photography shop) Flashgun in the roof, It is a dual flash Thyristor Flash gun, I will try and post a photo of it on here at some point this week but here is a photo of one similar.

Sorry about the Quality
My Question is Will this be safe to use on my 60D? Because I have read articles saying that the Sync voltage, (or something like that) Could damage the cameras components? They said something about 240 volts on these old type flash guns?
I didnt realize a charge was sent back to the camera?
Ohh Yeah it was a pentax fit, is the canon mount different?
Thanks Gareth
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Cameras: Canon Ixus 100is. 60D 17-85mm
Computer: 2008 Apple Macbook Aluminum (dreaming of a new retina macbook pro!!)
Phones: iPhone 1g And HTC Wildfire Apple iPad 3 wifi
http://www.flickr.com/photos/gareththomasjones/