Heh. Live and learn!

On Wednesday, May 31, 2023 at 7:36:22 AM UTC-4 Jon wrote:

> Ah, that's the *other* ETL! Electronic Tubes Ltd of High Wycombe as 
> opposed to Ericsson Telephones Ltd of Beeston. It's the Ericsson ETL which 
> makes the nixies, dekatrons etc.
>
> Thanks Martin!
>
> Jon.
>
>
> On Wednesday, May 31, 2023 at 12:25:52 PM UTC+1 Dekatron42 wrote:
>
>> It does look like Paul got his information from here: 
>> https://www.radiomuseum.org/dsp_hersteller_detail.cfm?company_id=9901
>>
>> /Martin
>>
>> On Wednesday, 31 May 2023 at 11:06:10 UTC+2 Jon wrote:
>>
>>> Paul, would you mind sharing the basis for your comment about the 
>>> post-1957 Mullard/ETL connection? I've done a lot of work on ETL history 
>>> (visited what's left of their archives, talked to employees etc) and this 
>>> is news to me.
>>>
>>> Thanks,
>>>
>>> Jon.
>>>
>>> On Tuesday, May 30, 2023 at 8:21:34 PM UTC+1 Paul Andrews wrote:
>>>
>>>> After 1957 ETL was owned by Mullard. The date codes for Mullard 
>>>> (Philips) tubes are described here 
>>>> <http://www.audiotubes.com/mullcode.htm>. It looks most likely that 
>>>> the first digit is the year number, the second letter is the month. The 
>>>> one 
>>>> I have is labelled 0B, which I would read as February 1960. Its a bit of a 
>>>> mess though.
>>>>
>>>> On Tuesday, May 30, 2023 at 1:15:02 PM UTC-4 gregebert wrote:
>>>>
>>>>> >  but there is a set of 6 matched GR114/CD47s (will sell only as a 
>>>>> set) 
>>>>> > loads of NIMOs
>>>>>
>>>>> Well, that's going to be the auction of the century. 
>>>>>
>>>>> On Tuesday, May 30, 2023 at 10:06:59 AM UTC-7 Nick wrote:
>>>>>
>>>>>> Thanks for asking, but I really don't know yet. There's a HUGE number 
>>>>>> of tubes to go through (many 1000s). A few of the exotica have been sold 
>>>>>> to 
>>>>>> other collectors, but there is a set of 6 matched GR114/CD47s (will sell 
>>>>>> only as a set) amongst the stuff in the store, plus many other rare 
>>>>>> tubes.
>>>>>>
>>>>>> I'll start doing auctions in a few months and will provide early 
>>>>>> warning here. Some of the stuff is extremely rare, including F9020, 
>>>>>> NEO-5000M, NEO-8000, loads of NIMOs, Pandicons, Pixies, Panaplex, 
>>>>>> Alphanumeric tubes etc.
>>>>>>
>>>>>> On Tuesday, 30 May 2023 at 17:55:20 UTC+1 Robert wrote:
>>>>>>
>>>>>>> Hi
>>>>>>>
>>>>>>> What would the cost be per tube, used or NIB?
>>>>>>>
>>>>>>> Thanks
>>>>>>> Rob
>>>>>>>
>>>>>>> On 30 May 2023, at 17:40, 'Nick' via neonixie-l <
>>>>>>> [email protected]> wrote:
>>>>>>>
>>>>>>> So here's the thing: I'm rationalising my rather large nixie 
>>>>>>> collection over the next few months.... I don't need lots of every 
>>>>>>> nixie.
>>>>>>>
>>>>>>>
>>>>>>> I'm starting with a stash of ETL GR10Gs in varying condition - one 
>>>>>>> has a broken 7 internally, 3 others are "dark" to the point of ... just 
>>>>>>> useable... another 10 are in "used but good to OK condition" and the 
>>>>>>> rest 
>>>>>>> are NIB.
>>>>>>>
>>>>>>> They're a strange, early, tube, needing a Va of 250VDC and an Ra of 
>>>>>>> only 10K for most digits, but 18K2 for the "1" and 14K7 for the "7", 
>>>>>>> i.e. 
>>>>>>> the 1 & 7 also have cathode resistors... They have no Hg doping, so the 
>>>>>>> life of the tube under controlled circumstances is only 5,000 hours... 
>>>>>>> Early stuff.
>>>>>>>
>>>>>>> But they are a BEAUTIFUL tube... I mean, REALLY BEAUTIFUL (IMHO)...
>>>>>>>
>>>>>>> The date codes on them are just two characters, e.g. "OJ" or "RC" 
>>>>>>> etc. Range of ETL logos too...
>>>>>>>
>>>>>>> Anyone have a decode table for these?
>>>>>>>
>>>>>>> Thanks
>>>>>>>
>>>>>>> Nick
>>>>>>>
>>>>>>>
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>>>>>>>
>>>>>>>

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