An amazing find. I have some ZM1370, I've never seen any ZM1360. You can 
find some documentation here https://www.nixies.us/bwg_gallery/zm1370/.

BTW Nick, the ZM1360 is *bigger *than the ZM1350 at 60mm high.

On Monday, November 13, 2023 at 4:39:17 PM UTC-5 Nicholas Stock wrote:

> Oh, it moves? Probably a leaky tube then I'm afraid.. unless anybody else 
> on the list has ideas?
>
> On Mon, Nov 13, 2023 at 1:22 PM Magnedyne <[email protected]> wrote:
>
>>
>> Furthermore I should mention that the partial glow does not affect only 
>> specific elements of the tube but any element inside the tube. 
>> Can this be caused by deposits?
>> Nicholas Stock schrieb am Montag, 13. November 2023 um 21:56:10 UTC+1:
>>
>>> WHAT A FIND!!! OMG. I didn't even know there were smaller versions of 
>>> the ZM1350 (shame on me!).
>>>
>>> The tubes with the partially lit segments can probably be revived with a 
>>> little extra current... just be careful not to burn them during the healing 
>>> process (if it works..).
>>>
>>> Wow..
>>>
>>> Welcome to the group,
>>>
>>> Nick
>>>
>>> On Mon, Nov 13, 2023 at 12:07 PM Magnedyne <[email protected]> 
>>> wrote:
>>>
>>>> Well, this serves as my introduction and and as a thread about a 
>>>> beautiful sign I just picked up.
>>>> Firstly something about myself.
>>>> I’m a 17 year old collector and (hobby) historian of vintage computers, 
>>>> my interests are mainly minis, mainframes, early micros and kit/diy 
>>>> computers. But I’ve got a few other different bits and bobs throughout the 
>>>> history of technology as well.
>>>> Now back to the reason I joined this group. 
>>>> I came across an absolutely beautiful Telefunken advertising sign for 
>>>> the, frankly underdocumented, Telefunken Varisymbol tubes. They were 
>>>> Telefunkens response to the Burroughs 7971 alphanumerical tubes. These 
>>>> were 
>>>> only sold for a very brief amount of time and exclusively in Europe. 
>>>> Interestingly these are flat like panaplex tubes and the anode is not a 
>>>> grid, but a coating on the inside of the tube. These are the earliest gas 
>>>> discharge tubes, well the ones I’m aware of anyhow, which used such a 
>>>> coating. 
>>>> The sign is a handmade one off which was lugged around to fairs to 
>>>> advertise the Varisymbol to potential Customers. It implements all three 
>>>> sizes of the Varisymbol ZM1350 ZM1360 & ZM1370. It can alternate between 
>>>> „TELEFUNKEN“ and „VARISYMBOL“ at four different speeds. Switching between 
>>>> the sign reading „TELEFUNKEN“  three times, then „VARISYMBOL“ three times 
>>>> and the sign reading „TELEFUNKEN VARISYMBOL TELEFUNKEN“/ „VARISYMBOL 
>>>> TELEFUNKEN VARISYMBOL“  is possible as well. Unfortunately three tubes 
>>>> don’t display quite properly. I’m hoping it’s just the electronics, I 
>>>> haven’t had time for a detailed diagnosis yet. Even if it’s the tubes, it 
>>>> seems to be the most common type at least, the ZM1350 which seems to have 
>>>> popped up most often in the past.
>>>> Any further info about the Varisymbol is greatly appreciated.
>>>> Cheers,
>>>> Magnedyne
>>>> [image: IMG_0026.jpeg]
>>>>
>>>> [image: IMG_0025.jpeg]
>>>> [image: IMG_0021.jpeg]
>>>>
>>>>
>>>>
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