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| General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc. |
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22nd Dec 2018, 3:07 pm
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#21 |
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Dekatron
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,222
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Re: Off topic but what are they?
I must try and dig out my Viewmaster, which is a 'GAF' branded one with internal battery illumination. I also have the wall-wart transformer for it (fits a Schuko socket) and several sets of slides.
As well as the well-known sets of travel pictures, I am sure I had a set of 3 slides (21 images) showing physics demostations. I remember one image that showed audio waveforms on a 'scope. |
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22nd Dec 2018, 6:19 pm
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#22 |
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Heptode
Join Date: Apr 2016
Location: Cheltenham, Gloucestershire, UK.
Posts: 875
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Re: Off topic but what are they?
I'd go with Lawrence ...... I've seen such devices used for viewing stereoscopic aerial survey photographs.
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Red to red, black to black. Throw the switch and stand well back! |
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23rd Dec 2018, 12:48 am
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#23 |
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Nonode
Join Date: Oct 2010
Location: Tintinara, South Australia, Australia
Posts: 2,342
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Re: Off topic but what are they?
The construction of the eye pieces and the style of plastic reminds me of a childs toy, but the box it is housed in probably contradicts that theory.
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