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Forum 141

B&W TV Mystery camera

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Doz
 Doz
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Got this camera on the bench .... does anyone recognise it? The PCB style is ringing huge bells with me, especially the PCB numbering C101/3 etc ... but I can't put my finger on it.... Pye? Certainly not a Lynx that I'd recognise.

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Posted : 28/12/2023 12:54 pm
Doz
 Doz
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Note to mods... didn't really know which category to put his in , please move if required.

 
Posted : 28/12/2023 12:55 pm
Cathovisor
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Link 101, I reckon.

http://www.tvcameramuseum.org/link/101/p1.html

Pity dear Mr. Cuff isn't still with us, I think he used to assemble them at one point in his career.

 
Posted : 28/12/2023 1:08 pm
Doz
 Doz
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@cathovisor Thanks Mike. That's certainly it.  Now to attempt to find a schematic...

 
Posted : 28/12/2023 1:18 pm
Cathovisor
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@doz It might be worth dropping a line to Brian Summers at the Camera Museum, he might be able to help. We used to use a genlocked version of these cameras in Tel. Studios for what was called the "Inlay Trolley".

An e-mail from Brian (with his surname misspelled) features here.

 
Posted : 28/12/2023 1:23 pm
Doz
 Doz
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Dammit - got the timebases up and running ... produces a raster on 405lines nicely. Sadly no picture. Checking pins 1&8 on the tube show a healthy 5.9V .... but no glow. I've confirmed the heater is open. 

Anyone have a 9677 Vidicon?

 
Posted : 30/12/2023 8:07 pm
irob2345
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@doz What's the heater current rating?

Might be worth trying the technique I used recently to get a CRT working again.

240 volts DC from a TV and a 240 volt lamp rated at the heater current in series.

Worked a treat!

 
Posted : 31/12/2023 4:01 am
Doz
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@irob2345 sadly it's down to air.

 
Posted : 31/12/2023 11:51 am
Lloyd
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That’s a shame! I have a Panasonic camera here that also has its tube down to air 🙁 it glows blue when powered up!

B4DC3754 D30A 4787 8354 E62F0AE1A720
 
Posted : 31/12/2023 12:01 pm
Cathovisor
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@doz Might be worth having words with Langrex in the New Year - Vidicons used to be ten a penny as they were not really suitable for broadcast use on moving subjects (too laggy) but as CCTV cameras they were okay.

BATC? And of course, US eBay. I got an incredibly obscure cold-cathode rectifier for my 1920s Burndept HT supply from there.

See also http://www.r-type.org/exhib/aaa1857.htm

 
Posted : 31/12/2023 2:49 pm
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