You mean Laser, John? I'm a bit out of touch with new products so have to ask.. Also if you need more stability or sensitivity, why not increase the marble block anyway- it's not mega costly? Interesting to see the device, anyway.
On Wednesday, 14 May 2014 17:05:49 UTC+1, John Dawes wrote: > > > > I have attached here a photo of the device used to make recordings of the > Hum. > > The light source is a small Lazar and the cell is a photo resister. > > > -- You received this message because you are subscribed to the Google Groups "Hum Sufferers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/hum-sufferers. For more options, visit https://groups.google.com/d/optout.
