[time-nuts] Vintage Quartz Crystal Manufacturing
artgodwin at gmail.com
Sat Nov 26 07:40:41 EST 2016
I bought some old crystals on ebay :
Is anyone familiar with this style ? I don't think the quartz is visible in
the glass section : I imagine that's just an insulator. I think the quartz
is under a brass disc, with a sping to hold the disc down visible through
Does anyone know what the reference marked on them "w'less sets No 7"
refers to ?
On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims <holrum at hotmail.com> wrote:
> Can you say "Mr Rogers' Neighborhood?" I knew you could...
> He (along with creepy Mr McFeelie) always ran segments on how some item
> was made. Geared towards pre-schoolers, but always worth watching.
> Compare the Science channel's new "How Do They Do It" to the older "How
> It's Made"
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