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  #31  
Old 12-23-2009, 02:23 PM
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BUMP!

Sorry for the bump, but I would like to ask if anyone has an EXTRA CRT from a Sinclair TV lying around - I would love to add 1 of them to my collection. Thanks.
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  #32  
Old 12-23-2009, 08:49 PM
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I spotted a NON-Working Sinclair TV on eBay several days ago that I thought might be a good tube donor... but the darn thing is over 100 bucks now, with more than 3 days left on the auction...Yikes!!

http://cgi.ebay.com/Sinclair-Microvi...item4a9d268a6e

jr
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  #33  
Old 12-23-2009, 09:05 PM
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Yeah - I have been watching auctions on eBay for a while, but they get too expensive for a unit just to pull a tube out of. I really do not want a complete set anyway. I thought that if someone has an extra 1 lying around, we could work something out.

The first time I actually saw what the tube looks like was when you posted a picture earlier in this thread - very interesting and even cool looking design compared to most CRTs that I have seen - I do not know if this is so different because it was designed in another country, or if it has any technical benefits.
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  #34  
Old 12-23-2009, 09:25 PM
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I suspect that the small magnetic deflected tubes actually offer better performance. But the "fat neck" to provide room for the deflection plates and the curved screen, which likely reduces deflection defocus make this tube very unique. Do you have a 913? I see them once in a while on eBay.

http://uv201.com/Tube_Pages/rca_913_crt.htm

jr
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  #35  
Old 12-23-2009, 09:33 PM
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I have never seen 1 of these tubes - I am going to add it to my wish list!
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  #36  
Old 12-23-2009, 11:21 PM
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I found this on the same site under CRTs and Camera tubes. (Don't know how to link to the exact page, but here's the picture)



1964!
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  #37  
Old 12-24-2009, 12:43 AM
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Cool find! This is a refinement of the Aken tube from the 50s... I believe that work continued through the mid 60s and even a color versions were attempted using various approaches.

jr
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  #38  
Old 12-24-2009, 11:02 AM
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For some reason I can't see the picture. But I can if I go directly to the link.

John

Last edited by jeyurkon; 12-24-2009 at 11:04 AM. Reason: Added comment
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  #39  
Old 12-24-2009, 05:18 PM
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Quote:
Originally Posted by jr_tech View Post
I suspect that the small magnetic deflected tubes actually offer better performance. But the "fat neck" to provide room for the deflection plates and the curved screen, which likely reduces deflection defocus make this tube very unique. Do you have a 913? I see them once in a while on eBay.

http://uv201.com/Tube_Pages/rca_913_crt.htm

jr
They were used on the RCA Type 151 oscilloscope. A picture of it, both outside and inside, is here:

http://www.myvintagetv.com/vintage_test_equipment.htm

along with the ad for it:

http://www.myvintagetv.com/oscillosc...ca_151_adv.jpg

I have two of these scopes.
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  #40  
Old 12-25-2009, 09:21 AM
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Quote:
Originally Posted by jeyurkon View Post
For some reason I can't see the picture. But I can if I go directly to the link.

John
It disappeared from my browser too. I think some people get "funny" about having pictures on message boards etc. That's fine, but then at least design our site so it can be directly linked!
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  #41  
Old 12-25-2009, 11:49 AM
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Test... Can we see these?

Added comment...Funny! now that I have downloaded and stored these pix, I can *again* see the pix in the original post, so I guess my browser stores them and supplies them as needed in the first post?

jr
Attached Images
File Type: jpg crt_1.jpg (39.7 KB, 133 views)
File Type: jpg crt_2.jpg (44.7 KB, 121 views)
File Type: jpg crt_4.jpg (44.5 KB, 111 views)

Last edited by jr_tech; 12-25-2009 at 02:12 PM. Reason: added comment
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  #42  
Old 12-25-2009, 01:01 PM
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Quote:
Originally Posted by jr_tech View Post
Test... Can we see these?
They display fine.

John
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  #43  
Old 09-06-2012, 12:17 AM
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Quote:
Originally Posted by jr_tech View Post
Yes, It appears that it was a pretty short run... This website states that the last tube Sony Watchman was the FD-280 in 1990. I suspect that perhaps the "monitors" were sold for a bit longer, but don't really know.

http://www.taschenfernseher.de/e-history.htm

Picture 1 is the odd shaped FD-280 from that link.

jr
They went until at least 1992, I have the same model from that year
(old thread but a fun one)
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  #44  
Old 09-08-2012, 07:42 PM
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More Watchmans (Watchmen?)

Some recent additions to my small TV collection:

1. "sports" versions... CW from 8:00; Green Bay Packers FD-2A, Tampa Bay Buccaneers FD-30A, San Francisco 49ERS FD-30A (the 30As have a decent AM/FM radio built in), LA Raders FD-20A. There are many more Football teams, as well as Baseball teams... I don't intend to collect them all.

2. 2.6 inch models... Continuing CW from 2:00; FD-230 (thick set), FD-270 (nice, thin set) and the weird palm-grip FD-280.

3. Red white and blue FD-10 series... I don't have the white yet.

4. Odd Digital Clock TV/FM FD-3A. Clock is not functional on this sample, so I can't tell if it can be used as an alarm clock radio/TV... anybody here know for sure?

jr
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File Type: jpg DSCN2118.jpg (99.8 KB, 46 views)
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  #45  
Old 09-08-2012, 07:53 PM
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There should be a separate battery to operate the clock on the FD-3A.
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