I also believe that they were used for text on RADAR displays. There were a lot of variants of the CK1414 - the suffix specifies the mask in the tube - it's the mask that determines what characters the tube can generate.
I have two types here - CK1414-07 (Brimar) & CK1414F10C (Raytheon) - they generate different characters. Some larger users had custom masks made for specific applications (e.g. RADAR screen symbols). Nick On Thursday, 12 May 2022 at 22:43:52 UTC+1 Jens Boos wrote: > This is so cool! Thanks for sharing, much appreciated! > > Best wishes > Jens > > On 2022-05-12 12:06 p.m., Toby Thain wrote: > > On 2022-05-12 11:41 a.m., Adrian Godwin wrote: > >> So it's a thermionic character-generator ROM ? > >> > > > > TubeTimeUS, who for all I know is on this list, has blogged in detail > > about these: > > > > http://tubetime.us/index.php/2018/06/04/a-vacuum-tube-rom/ > > > > https://twitter.com/TubeTimeUS/status/1002324117226287104 > > > > I own a handful of these tubes so I'm keen to recapitulate their work. > > > > --Toby > > > > > > > >> On Thu, May 12, 2022 at 4:31 PM Nicholas Stock <[email protected] > >> <mailto:[email protected]>> wrote: > >> > >> It's a 'monoscope'....reads off letters on the end plate... > >> > >> http://ed-thelen.org/comp-hist/CK1414.pdf > >> <http://ed-thelen.org/comp-hist/CK1414.pdf> > >> > >> On Thu, May 12, 2022 at 8:27 AM jb-electronics > >> <[email protected] <mailto:[email protected]>> > >> wrote: > >> > >> I should probably know, but how does this generate the > >> characters, and > >> where can I read them off? > >> > >> https://www.ebay.com/itm/354047743434 > >> <https://www.ebay.com/itm/354047743434> > >> > >> Cheers > >> Jens > >> > >> -- 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] > >> <mailto:neonixie-l%[email protected]>. > >> To view this discussion on the web, visit > >> > https://groups.google.com/d/msgid/neonixie-l/4398b82d-f18f-644d-4485-b490328535ac%40jb-electronics.de > >> < > https://groups.google.com/d/msgid/neonixie-l/4398b82d-f18f-644d-4485-b490328535ac%40jb-electronics.de > >. > >> > >> -- 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] > >> <mailto:[email protected]>. > >> To view this discussion on the web, visit > >> > https://groups.google.com/d/msgid/neonixie-l/CAOX%2BRHLTaqHsX28ZSXAkuRiP6zdUmE84K-AAJXTc2VAtW%3D%2BBPg%40mail.gmail.com > >> < > https://groups.google.com/d/msgid/neonixie-l/CAOX%2BRHLTaqHsX28ZSXAkuRiP6zdUmE84K-AAJXTc2VAtW%3D%2BBPg%40mail.gmail.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] > >> <mailto:[email protected]>. > >> To view this discussion on the web, visit > >> > https://groups.google.com/d/msgid/neonixie-l/CALiMYrugcb_0Ut0A9EeTuAB1BO1OP6-vfHwCFczDpG6P7iX97Q%40mail.gmail.com > > >> < > https://groups.google.com/d/msgid/neonixie-l/CALiMYrugcb_0Ut0A9EeTuAB1BO1OP6-vfHwCFczDpG6P7iX97Q%40mail.gmail.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/1fce9fe0-260d-4f5e-acca-2ae34f4d042cn%40googlegroups.com.
