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WH Transformator 8-200V marked U 20 ?
Old 05-27-2016, 08:40 AM   #1
Aries22
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Default WH Transformator 8-200V marked U 20 ?

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Old 05-27-2016, 08:43 AM   #2
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Hello,
need help with this item I never see it before and any info on internet I can not find too...Thanks all for help...besides it is cca 28 kg weight.
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Old 05-27-2016, 10:43 AM   #3
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Quote:
Originally Posted by Aries22 View Post
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This is not a transformer, this is umformer, U20.

Close relative to this one.

http://www.battlefrequencies.com/acc...00_24b_24.html

Now Yuri can see how the missing switch looked like.

Last edited by Val; 05-27-2016 at 10:49 AM.
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Old 05-27-2016, 10:53 AM   #4
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Quote:
Originally Posted by Val View Post
This is not a transformer, this is umformer, U20.

Close relative to this one.

http://www.battlefrequencies.com/acc...00_24b_24.html

Now Yuri can see how the missing switch looked like.
Oh Wow! I thought I would never find what the switch looked like. This is a very cool Umformer - early form-factor. Would it be possible to get pics of the insides (from the bottom)? Especially the underside of the switch?

THanks!
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Old 05-28-2016, 05:36 AM   #5
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Thanks all for help with this machine...I do not expect so big interest about it via messages, can someone help me what should be the fair price for this machine ? I m really lost in this big and heavy items Regards
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Old 05-28-2016, 05:48 AM   #6
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Quote:
Originally Posted by Aries22 View Post
Thanks all for help with this machine...I do not expect so big interest about it via messages, can someone help me what should be the fair price for this machine ? I m really lost in this big and heavy items Regards
Just put it on Ebay and you will soon find out....

regards,

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Old 05-28-2016, 09:03 AM   #7
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Quote:
Originally Posted by Aries22 View Post
Thanks all for help with this machine...I do not expect so big interest about it via messages, can someone help me what should be the fair price for this machine ? I m really lost in this big and heavy items Regards
Price is always quite a relative thing that depends heavily on the Moon phase. Even on the Ebay one day you could get very good price and on the other day no bidders at all. It all depends.

However what is sure is that your umformer is quite a rare beast...so choose wisely. But before selling it I appreciate if you post here nice inside images and closeup photo of that switch. Thank you.
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Old 05-28-2016, 09:24 AM   #8
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Quote:
Originally Posted by Val View Post
Price is always quite a relative thing that depends heavily on the Moon phase. Even on the Ebay one day you could get very good price and on the other day no bidders at all. It all depends.

However what is sure is that your umformer is quite a rare beast...so choose wisely. But before selling it I appreciate if you post here nice inside images and closeup photo of that switch. Thank you.
Thank you for advice. I will try to do it for you asap
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Old 05-28-2016, 10:37 AM   #9
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It is a rare beast indeed, it was used with the Lorenz Tf 15 E transmitter in the early 1930's by the Reichswehr. This transmitter was used in the Sd.Kfz 3, a lightly armoured car build on an Adler chassis. It was the first type of armoured radio vehicle addopted by the Reichswehr and it was used mainly for training and tactical development. It was also used in the "Panzerkampfwagen Nachbildungen" (the early mock-up tanks used for training).

You can find some pictures of a similar transmitter, the TF 15 Zf, which was used on ships: http://www.seefunknetz.de/tf15zf.htm

It is interesting that the form factor of the Umformer is identical to that of the later U100 used with the 100 W.S. LS100/108. This transmitter succeeded the TF 15 E in the Reichswehr. During the initial switchover to the 100 W.S. in the Sd.Kfz 3 they kept using the U20 as the battery in the vehicle was too weak to supply the U100. The sligthly reduced anode voltage (800 versus 1000 Volt) only reduced the range of the 100 W.S. with about 10% while using the frame antenna.

regards,

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Old 05-29-2016, 05:07 AM   #10
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It is the Umformer U 20 of the first version of radio equipment from 1935 for the first German tanks "Panzer I" from 1935. This was an equipment of a very first status of developement, not fully ready for use but ready to get experience for next generation. It was a very busy development following Guderians demand "Jeder Panzer hat Funkgerät" (every tank has to have radio equipment). But these first sets are today mostly unknown in detail and extremly seldom in mueums and collections. I have never seen an U 20 (without following a, b, c ...).
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Old 05-29-2016, 05:53 AM   #11
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Quote:
Originally Posted by Funkmeister View Post
It is the Umformer U 20 of the first version of radio equipment from 1935 for the first German tanks "Panzer I" from 1935. This was an equipment of a very first status of developement, not fully ready for use but ready to get experience for next generation. It was a very busy development following Guderians demand "Jeder Panzer hat Funkgerät" (every tank has to have radio equipment). But these first sets are today mostly unknown in detail and extremly seldom in mueums and collections. I have never seen an U 20 (without following a, b, c ...).
The Panzer I was equipped with VHF radios. Only the Kl.Bef.Pz (Sd.Kfz. 265) was fitted with a 20 W.S.c, which used a different type of U20 umformer (delivering 375 V anode voltage). The Umformer shown here predates any operational Panzers....

regards,

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Old 05-29-2016, 02:45 PM   #12
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Thanks all for intersting info
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Old 05-29-2016, 04:01 PM   #13
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Aries22, one more thing besides images. As you see, there's acceptance eagle left from type shield. Is there WaA number under it visible via magnifying glass? What number it is?
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Old 05-30-2016, 12:39 PM   #14
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It is very very hard to read... Im sure about 10 but last one is not so visible but by my oppinion it is 4 so 104 shlould be the number....
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Old 02-04-2018, 02:38 AM   #15
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Do you still have this Umformer?
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