<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.6000.16587" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><STRONG><FONT face=Arial>It was an electrical device, made with a transformer to lower the voltage, and I think a rectifier to make the voltage DC.</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial>Contact was made to complete the circuit using the pin. The resistance heated up the pin, and 'burnt' off the verdigree.</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial>Or in most cases just heated up the pin enough to shrink the felt, and loosen the pin.</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial>The circuitry, is probably in an old journal.</FONT></STRONG></DIV> <DIV>John Ross<BR>Windsor, Nova Scotia, Canada<BR><A href="mailto:jrpiano@win.eastlink.ca">jrpiano@win.eastlink.ca</A></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=paul@bruesch.net href="mailto:paul@bruesch.net">paul bruesch</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, January 06, 2008 10:25 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Being called out on stage</DIV> <DIV><BR></DIV>What's a zapper??<BR><BR> <DIV class=gmail_quote>On Jan 6, 2008 5:50 PM, Ron Nossaman <<A href="mailto:rnossaman@cox.net">rnossaman@cox.net</A>> wrote:<BR> <BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid"> <DIV class=Ih2E3d><BR>> I had the zapper...it belongs in a museum....good idea for<BR>> the Home Office...a museum of bad ideas/tools in piano<BR>> technology...;-]<BR><BR></DIV>Hey, I have some of those I'd donate. Tuning pin locks, <BR>soundboard toggle clamps, hammer shank bender, etc. I bought<BR>every one of them, mostly in boxes of miscellaneous from<BR>tuners' estate sales and auctions.<BR> <DIV class=Ih2E3d><BR><BR><BR>I don't think Protek was around in those <BR>> days...<BR><BR></DIV>Mineral oil.<BR>Ron N<BR></BLOCKQUOTE></DIV><BR></BLOCKQUOTE></BODY></HTML>