Hi Ben. Thanks for sending the pic. This is an interesting piece of equipment/history. Back in the days when this was built (commercial products assembled by a DIY'er) it would probably be one of the SAFER items around, considering some of the hookups I've seen in various halls and theaters. Nowadays, of course, it is more of historical interest - although I guess you could use it as some kind of weird pyrotechnic device [Linked Image].

Lest we forget what happened in Rhode Island... [Linked Image]

Mike (mamills)