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 >>>>> >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "neonixie-l" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To view this discussion on the web, visit >>>>> https://groups.google.com/d/msgid/neonixie-l/39c22549-5fab-417d-8518-7888e39cb62en%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/neonixie-l/39c22549-5fab-417d-8518-7888e39cb62en%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>>> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/f18a6eae-3e6c-4605-b5e2-854ddf33b06an%40googlegroups.com.
