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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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21st Feb 2016, 9:20 pm | #1 |
Retired Dormant Member
Join Date: Jan 2009
Location: Rugby, Warwickshire, UK.
Posts: 2
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Difference between A49-191X and A49-120X crts
Hi,
Does anyone know the difference between these tube types and whether they are interchangeable in most applications? Also, perhaps a daft question but is there anyone re-gunning delta tubes anymore? Thanks |
22nd Feb 2016, 12:50 am | #2 |
Octode
Join Date: Aug 2006
Location: Willington, County Durham, UK.
Posts: 1,498
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Re: Difference between A49-191X and A49-120X crts
I have never heard of a A49-120x crt. What set is it fitted to? Could be a regun? Sadly there are not any crt rebuilders of colour tv tubes left now Malc.
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Malc Scott |
22nd Feb 2016, 1:43 am | #3 |
Heptode
Join Date: May 2006
Location: Accrington, Lancashire, UK.
Posts: 977
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Re: Difference between A49-191X and A49-120X crts
Long time ago, was the 120X fitted in the Thorn8500.
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22nd Feb 2016, 1:55 am | #4 |
Dekatron
Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
Posts: 7,444
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Re: Difference between A49-191X and A49-120X crts
An A49-120X is listed in the Radiomuseum.
http://www.radiomuseum.org/tubes/tube_a49-120x.html The only suggestion I can offer is the A49-120X has the thinner rimband which permits push through screen presentation. Mazda called it rimband 3. The type designation indicates the tube is of European origin whereas the A49-191X was developed by RCA and was made by Thorn AEI. Also has rimband 3. A49-120X and A49-191X can be considered interchangeable. Also A49-192X. The earlier A49-11X has the metal shell type of implosion protection. This type of tube required the mask to hide the implosion protection. Mazda called it rimband 1. DFWB. |
22nd Feb 2016, 10:07 pm | #5 |
Retired Dormant Member
Join Date: Jan 2009
Location: Rugby, Warwickshire, UK.
Posts: 2
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Re: Difference between A49-191X and A49-120X crts
Thanks for all your answers. I can confirm that both types are suitable for push-through presentation as any other 120X would be. Infact, the two types look identical but I wanted to check there wasn't some subtlety that meant they aren't interchageable.
The 49-120X is a Mullard "Colourex" regun by the way but has the very bulbous shape at the rear top and bottom, unlike say a 56-120X. Maybe it started life as something else. |