Being called out on stage

[John Ross]

It was an electrical device, made with a transformer to lower the voltage, and I think a rectifier to make the voltage DC.
Contact was made to complete the circuit using the pin. The resistance heated up the pin, and 'burnt' off the verdigree.
Or in most cases just heated up the pin enough to shrink the felt, and loosen the pin.
The circuitry, is probably in an old journal.
John Ross
Windsor, Nova Scotia, Canada
jrpiano at win.eastlink.ca
  ----- Original Message ----- 
  From: paul bruesch 
  To: Pianotech List 
  Sent: Sunday, January 06, 2008 10:25 PM
  Subject: Re: Being called out on stage


  What's a zapper??


  On Jan 6, 2008 5:50 PM, Ron Nossaman <rnossaman at cox.net> wrote:


    > I had the zapper...it belongs in a museum....good idea for
    > the Home Office...a museum of bad ideas/tools in piano
    > technology...;-]


    Hey, I have some of those I'd donate. Tuning pin locks, 
    soundboard toggle clamps, hammer shank bender, etc. I bought
    every one of them, mostly in boxes of miscellaneous from
    tuners' estate sales and auctions.




    I don't think Protek was around in those 
    > days...


    Mineral oil.
    Ron N


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