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Simultangerät LN 29845
Old 01-25-2018, 04:47 AM   #1
mig2830
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Default Simultangerät LN 29845

Hello,

I have tried to locate information on the "simultangerät" with the anforderungzeichen LN 29845.

It was used in late radar installations to combine the transmitter and receiver to the antenna.

Can anyone assist with documentation, it would be much appreciated.

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Old 01-25-2018, 06:40 AM   #2
Funksammler
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For which radar installation, FuG 200?

regards,

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Old 01-25-2018, 06:58 AM   #3
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It was used at least with the FuG 218

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Old 01-25-2018, 07:47 AM   #4
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You can find information on the FuG218 here: https://www.radiomuseum.org/forum/si...81_hantel.html

The Simultangerät used two Nullode valves, probably a type from of the LG70 series.

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Old 01-25-2018, 10:45 AM   #5
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You might look at this

http://www.cdvandt.org/jagdschloss.htm

"Riessersee - T/R stage. Also known as: Simultangerät. Using 2 x SD6 (SD6a). This type was later in the war apparently replaced by so-called Nullodes"

And also look at this Radar News 19 link provided there.

http://www.cdvandt.org/Radar%20news%...019%20modi.pdf
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Old 01-27-2018, 10:49 AM   #6
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Thanks for interesting links.

I have made the following image and a question to what is underneath the two simultangeräte in series:



Any help?
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Old 01-27-2018, 11:40 AM   #7
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Hi mig2830,

Can you make that image bigger and more detailed?
Better yet, make several pictures with different angles.
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Old 01-29-2018, 09:16 AM   #8
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Hi Val,

Unfortunately it is the best I can do.

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Old 02-26-2018, 09:07 AM   #9
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Hi,

I found the explanation. The "nullode" has a operating temperature down to -10 dg. C. As the equipment was operating in temperatures well below -10 it needed to be heated. So it is a heating element that is "hiding" , the connection to the heating element is from the 28 V bordbatterie

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