http://www.jcfonline.com/ threads/97770-A-Shocking-Old- Tube-Amp-Question
And here's another cool link that summarize the topic quite nicely (at least for us players) and there's a walk thru for the DIY conversion.
http://www.netads.com/~meo/Guitar/Amps/Kalamazoo/Mods/safe.html
And here's another cool link that summarize the topic quite nicely (at least for us players) and there's a walk thru for the DIY conversion.
http://www.netads.com/~meo/Guitar/Amps/Kalamazoo/Mods/safe.html