[time-nuts] Vintage Quartz Crystal Manufacturing

[Adrian Godwin]

I bought some old crystals on ebay :

http://www.ebay.co.uk/itm/122225114483

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
the glass.

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"
> shows.
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