Some Early Stereos... - UK Vintage Radio Repair and Restoration Discussion Forum

ms660 · 8th Dec 2017, 8:08 pm

Well not in the usual context:

https://soundofthehound.files.wordpr.../marconi81.jpg

http://www.americanradiohistory.com/...=%22stereos%22

Lawrence.

stevehertz · 9th Dec 2017, 1:52 pm

Seems to suggest that in this context Marconi are using the word 'stereo' to describe an image. Strange.

Nuvistor · 9th Dec 2017, 3:31 pm

Stereo image, yes, similar to these.
https://en.m.wikipedia.org/wiki/Stereoscopy

Stuart R · 9th Dec 2017, 4:59 pm

I think Stereo is short for Stereotype, part of the printing process.

As far as I understand, once the Typesetter had laid out all the letters and graphics required in a frame, a mould would be made of the completed artwork.

The mould is then used to create a metal printing block of the artwork that can be used in the press. The individual type that created it can be dis-assembled and re-used.

Maybe Marconi were offering dealers printing blocks (or moulds?) that they could give to their printers for use in local newspapers and advertising. You'd just be sent a hi-res image file these days.

SR

stevehertz · 9th Dec 2017, 7:37 pm

Quote:

Originally Posted by Nuvistor

Stereo image, yes, similar to these.
https://en.m.wikipedia.org/wiki/Stereoscopy

Well no, the Marconi document is nothing to do with stereo images as in left and right; stereo viewing. It's purely 'mono' viewing.

Nuvistor · 9th Dec 2017, 7:44 pm

Hi Steve,
Did you look at the WW link in the original post, it shows a stereo viewer with the photos. The first link does show individual images, this was an advert to show what was available for the viewer.
That’s how I understand it.

paulsherwin · 9th Dec 2017, 7:44 pm

Interesting usage of the term, which I hadn't encountered before.

russell_w_b · 11th Dec 2017, 5:34 pm

Weren't stereoscopes used during WWII to analyse images taken by the PRU aircraft with two cameras mounted? Wasn't that how the ramps at Peenemunde for the V1 launchers were discovered?

Nuvistor · 11th Dec 2017, 6:51 pm

http://www.bbc.co.uk/news/magazine-13359064

emeritus · 11th Dec 2017, 6:56 pm

The first item is clearly referring to printing blocks. If you zoom in on the text in the square box in the bottom right hand corner, it says that the stereos are available in larger sizes. This only makes sense in the context of printing blocks, because AFAIK stereo photo pairs of that era were only produced in one size which was determined by the distance apart of human eyes.

Conversely, the second (Wireless World) item is referring to stereo pairs for 3D viewing.

My understanding is that the WWII stereo photos were taken sequentially, possibly using only a single camera, from an aircraft flying in a straight line, in order to get a larger baseline to enhance the stereo effect.

Edit: crossed with Frank's post. The article refers to sequences of prints with 60% overlap.

dseymo1 · 11th Dec 2017, 7:47 pm

For anyone who is unaware, stereo means 'solid' - hence stereophonic and stereoscopic, referring to the three-dimensional images produced.
Stereotype alludes to the fact that the whole illustration is made in one piece. They were often pierced, however, to allow standard type to be used to insert a maker's name or whatever.

stevehertz · 11th Dec 2017, 8:06 pm

Quote:

Originally Posted by Nuvistor

Hi Steve,
Did you look at the WW link in the original post, it shows a stereo viewer with the photos. The first link does show individual images, this was an advert to show what was available for the viewer.
That’s how I understand it.

I disagree. The first (Marconi) document makes no mention whatsoever of stereo imagery, and - in my opinion - any such link is purely speculative. The second document, undoubtedly, includes a piece about stereo imagery. I have a couple of sets of those vintage viewing 'glasses', so I know what they are and how they work.

Nuvistor · 11th Dec 2017, 9:04 pm

That ok Steve, that’s what I thought they were, if I am wrong, that fair enough, not be the first time.

trobbins · 12th Dec 2017, 10:15 am

It does beg the question of when stereophonic was shortened to stereo - as an adjective, and then as a noun (in the audio reproduction sense).

Brigham · 12th Dec 2017, 10:33 am

...and have its pronunciation changed, for that matter.

FERNSEH · 12th Dec 2017, 11:06 am

I believe the word stereo is derived from the classic Greek word stereos, meaning solid, three dimensional.
Phonetic Spelling: (ster-eh-os')
https://www.etymonline.com/word/stereo-

DFWB.

8th Dec 2017, 8:08 pm	#1
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Some Early Stereos... Well not in the usual context: https://soundofthehound.files.wordpr.../marconi81.jpg http://www.americanradiohistory.com/...=%22stereos%22 Lawrence.

9th Dec 2017, 1:52 pm	#2
stevehertz Dekatron Join Date: Sep 2011 Location: Rugeley, Staffordshire, UK. Posts: 8,830	Re: Some Early Stereos... Seems to suggest that in this context Marconi are using the word 'stereo' to describe an image. Strange. __________________ A digital radio is the latest thing, but a vintage wireless is forever..

9th Dec 2017, 3:31 pm	#3
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,431	Re: Some Early Stereos... Stereo image, yes, similar to these. https://en.m.wikipedia.org/wiki/Stereoscopy __________________ Frank

9th Dec 2017, 4:59 pm	#4
Stuart R Heptode Join Date: May 2011 Location: Letchworth Garden City, Hertfordshire, UK. Posts: 693	Re: Some Early Stereos... I think Stereo is short for Stereotype, part of the printing process. As far as I understand, once the Typesetter had laid out all the letters and graphics required in a frame, a mould would be made of the completed artwork. The mould is then used to create a metal printing block of the artwork that can be used in the press. The individual type that created it can be dis-assembled and re-used. Maybe Marconi were offering dealers printing blocks (or moulds?) that they could give to their printers for use in local newspapers and advertising. You'd just be sent a hi-res image file these days. SR

9th Dec 2017, 7:44 pm	#6
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,431	Re: Some Early Stereos... Hi Steve, Did you look at the WW link in the original post, it shows a stereo viewer with the photos. The first link does show individual images, this was an advert to show what was available for the viewer. That’s how I understand it. __________________ Frank

9th Dec 2017, 7:44 pm	#7
paulsherwin Moderator Join Date: Jun 2003 Location: Oxford, UK Posts: 27,934	Re: Some Early Stereos... Interesting usage of the term, which I hadn't encountered before.

11th Dec 2017, 5:34 pm	#8
russell_w_b Dekatron Join Date: Jul 2007 Location: Penrith, Cumbria, UK. Posts: 3,687	Re: Some Early Stereos... Weren't stereoscopes used during WWII to analyse images taken by the PRU aircraft with two cameras mounted? Wasn't that how the ramps at Peenemunde for the V1 launchers were discovered? __________________ Regds, Russell W. B. G4YLI.

11th Dec 2017, 6:51 pm	#9
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,431	Re: Some Early Stereos... http://www.bbc.co.uk/news/magazine-13359064 __________________ Frank

11th Dec 2017, 6:56 pm	#10
emeritus Dekatron Join Date: Jan 2012 Location: Brentwood, Essex, UK. Posts: 5,337	Re: Some Early Stereos... The first item is clearly referring to printing blocks. If you zoom in on the text in the square box in the bottom right hand corner, it says that the stereos are available in larger sizes. This only makes sense in the context of printing blocks, because AFAIK stereo photo pairs of that era were only produced in one size which was determined by the distance apart of human eyes. Conversely, the second (Wireless World) item is referring to stereo pairs for 3D viewing. My understanding is that the WWII stereo photos were taken sequentially, possibly using only a single camera, from an aircraft flying in a straight line, in order to get a larger baseline to enhance the stereo effect. Edit: crossed with Frank's post. The article refers to sequences of prints with 60% overlap. Last edited by emeritus; 11th Dec 2017 at 7:08 pm.

11th Dec 2017, 7:47 pm	#11
dseymo1 Retired Dormant Member Join Date: Dec 2007 Location: Shropshire, UK. Posts: 3,051	Re: Some Early Stereos... For anyone who is unaware, stereo means 'solid' - hence stereophonic and stereoscopic, referring to the three-dimensional images produced. Stereotype alludes to the fact that the whole illustration is made in one piece. They were often pierced, however, to allow standard type to be used to insert a maker's name or whatever.

11th Dec 2017, 9:04 pm	#13
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,431	Re: Some Early Stereos... That ok Steve, that’s what I thought they were, if I am wrong, that fair enough, not be the first time. __________________ Frank

12th Dec 2017, 10:15 am	#14
trobbins Heptode Join Date: Oct 2009 Location: Melbourne Australia Posts: 901	Re: Some Early Stereos... It does beg the question of when stereophonic was shortened to stereo - as an adjective, and then as a noun (in the audio reproduction sense).

12th Dec 2017, 10:33 am	#15
Brigham Octode Join Date: Mar 2006 Location: Co. Durham, UK. Posts: 1,115	Re: Some Early Stereos... ...and have its pronunciation changed, for that matter.

12th Dec 2017, 11:06 am	#16
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: Some Early Stereos... I believe the word stereo is derived from the classic Greek word stereos, meaning solid, three dimensional. Phonetic Spelling: (ster-eh-os') https://www.etymonline.com/word/stereo- DFWB. Last edited by FERNSEH; 12th Dec 2017 at 11:16 am.