PM Audrey wrote:
>
>> I.E.E. maybe?
>>
>> On Tue, Jul 18, 2023, 3:29 PM Bartek Ogryz wrote:
>>
>>> Hi!
>>> Recently I bought a couple of B5870S nixie tubes - nothing special,
>>> quite popular Burroughs tubes. But mine aren't Burroughs. The manuf
Hi!
Recently I bought a couple of B5870S nixie tubes - nothing special, quite
popular Burroughs tubes. But mine aren't Burroughs. The manufacturer is
marked "E.E.". I wonder who is behind these letters?
Exactly, like the one below (photo from the web).[image: ee nixie.jpg]
Bartek.
--
You
Hi Petro, and everybody!
Polish doors are open to all who need a shelter, but we (and Moldova
especially !) need some international help to relocate migrants in EU. We
have 2 000 000 refugees (much smaller Moldova has 340 000 - respect for
them, they are awesome!) in our country, it's 5% of our
Do you know how eastern sellers (Ukrainians, Russians, etc) are uplifting
the tubes prices? It's a very simple trick :)
I had bought many IV-25 about a year ago for funny money. It was a real
catch! After a few days, the seller had raised the price 10x. From that
moment on, every next person,
Very nice tube!
@gregebert
The tube is 250mm high by 76mm diameter. Your 4GB memory would need min.
0,77km2 of PCB :D
The production cost was 500USD in 1946 (equivalent of 5378USD in 2020).
Bartek.
piątek, 31 grudnia 2021 o 06:17:48 UTC+1 gregebert napisał(a):
> Hmmm, if I needed to replace
Nice tubes, with ugly price ;)
I remember, I could have bought some of them for 20EUR/pc 15 years ago
"That much? You must be crazy!" - I had thought... :(
In 15 years, I'll think to myself: "If I had bought them then for 1000EUR,
I would be a millionaire today" ;)
Bartek.
czwartek, 18
;> Mark Moulding
>>>>>
>>>>> [image: WoodClock (Small).JPG]
>>>>>
>>>>> On Tuesday, October 26, 2021 at 2:21:21 PM UTC-7 Dekatron42 wrote:
>>>>>
>>>>>> I knew I'd seen the number, and found them just now:
>>>>>
t;> /Martin
>>>
>>> On Tuesday, 26 October 2021 at 22:21:47 UTC+2 Dekatron42 wrote:
>>>
>>>> Tubes designated DTF are development numbers used by Apollo/RCA - it
>>>> says so at the bottom of their datasheets.
>>>>
>>>> /
Hi!
They appeared on eBay last days: DTF137, DTF138, DTF140 (or maybe DTF/37,
DTF/38, DTF/40). What are theese? Anyone has some more knowledge about them?
Bartek.
BTW: If someone is interested in numitrons, quite rare Apollo DA-2500 are
hiding on eBay: item no 254866404573. Unfortunatelly, as
I'm not familiar with that project and that circuit, but based on my
experience in CRT TV repairs, if you have a proper blanking signal,
something must be wrong with HV as Tristan said.
Grid1 - negative voltage on this grid allows electrons to flow (brighter
picture), 0V blocks them (darkness).
I don't judge that seller. He might just not know what he had, tubes could
also be stored improperly, without any protection - that's an often
problem. To bad, he didn't describe them as "untested". Why the description
was "like new"?
The positive thing in my story is, that he didn't make any
Hi!
I won some of his auctions (but not that one), now I'm waiting for a
partial refundation. Nixies were supposed to be "like new" and some of them
were, but others were heavily used (even those in boxes), some other were
compleatly dead.
So knowing it's final price, I'm more curious of it's
What about "6" and "9" ;) ?
The cost may not be so tiny - think about all the preparations, that have
to be made, to produce a digit (project, matrix for the cutter, etc.)
Bartek.
wtorek, 19 października 2021 o 10:51:10 UTC+2 artgod...@googlemail.com
napisał(a):
> It always surprised me that
@Greg: YES :) It's an IN-1 for sure. Thank you!!!
@LB: It's not biquinary. It has 14 leads placed in the glass, but three of
them are not used - they are cut very short (one of them is visible on
photo),
@Chuck: Russian IN-4 has no internal connections between odd and even
digits. It has 14
.
>>
>> On Saturday, September 18, 2021 at 1:34:36 AM UTC+2 Bartek Ogryz wrote:
>>
>>> Hi!
>>> I'm trying to identify an unknown nixie tube. You can see it on a photos
>>> (I'm not able to do a better ones right now). The tube is red coated. It
>>
I wonder, what kind of display is that? I've never seen one like this.
poniedziałek, 19 lipca 2021 o 17:40:28 UTC+2 artgod...@googlemail.com
napisał(a):
> You don't like it laced with waxed cotton ?
>
>
> On Mon, Jul 19, 2021 at 12:15 PM Joe Croft wrote:
>
>> How I love point to point wiring!
com*
>
>
> On Thu, Jul 8, 2021 at 2:38 PM Dekatron42 wrote:
>
>> They had the red paint covering the white text. I can't say how they were
>> produced or who produced them.
>>
>> /Martin
>>
>> On Thursday, 8 July 2021 at 22:22:51 UTC+2 Bartek
I'd been watching it on eBay :)
Does it has any printing on it?
-Bartek
sobota, 10 lipca 2021 o 20:16:25 UTC+2 Bill Notfaded napisał(a):
> All the cathodes are 7's!
>
> Bill
> On Saturday, July 10, 2021 at 11:14:50 AM UTC-7 Bill Notfaded wrote:
>
>> Here it is!
>>
>> Bill
>> [image:
lab sample or similar??
>>>
>>> Cheers,
>>>
>>> Nick
>>>
>>> Sent from my iPhone
>>>
>>> On Jul 6, 2021, at 15:43, Jeff Walton wrote:
>>>
>>>
>>>
>>> I'd say homemade. Burroughs didn't do an
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