Eric, You could build a phantastron circuit with tubes, similar to the dividing stages used in for instance the Tektronix 180a Time-mark Generator, they are quite precis with quality components and easily divide by ten, or whatever number they can be tuned to by selecting component values. The phantastron uses a lot less tubes compared to a binary divider.
/Martin On Monday, 10 February 2014 14:10:42 UTC+1, Tidak Ada wrote: > Martin, > > Yes one, but the number needed for a divide by ten counter makes it much > more power consuming. > The same applies OCXO's and a Rubidium standard. > > May be I want to make the oscillator to precise, but the final design > will probably be quite difficult to set at the right time, so I like to > avoid that with a very accurate time keeping element. > > Thanks for thinking along with me, > > eric > > ------------------------------ > *From:* neoni...@googlegroups.com <javascript:> [mailto: > neoni...@googlegroups.com <javascript:>] *On Behalf Of *Dekatron42 > *Sent:* maandag 10 februari 2014 13:02 > *To:* neoni...@googlegroups.com <javascript:> > *Subject:* Re: [neonixie-l] Elesta EZ10/A/B tester refurbished! > > Eric, > > One subminiature thermionic valve will not draw much more power than an > EZ10B! > > I understand if you want to keep it all cold cathode, I did the same a few > years ago but never found a cold cathode tube that worked at those speeds > in an oscillator circuit. There are a lot of books on crystal oscillators > and I think that you could use a crystal oven with either a 1MHz or 100kHz > crystal and have a very stable oscillator with those, the TCXO might be > somewhat better but with the lower frequency you can just copy a circuit > from any old frequency counter. > > /martin > > On Monday, 10 February 2014 11:20:12 UTC+1, Tidak Ada wrote: > >> John, >> Concerning thermionic tubes you are right, but my goal is to use only >> cold >> cathode tubes, surely not in the last place to keep power consumption >> low. >> A divide by 10 counter, even with submini's or Nuvistors consumes a lot >> of >> Watts... >> >> eric >> >> -----Original Message----- >> From: neoni...@googlegroups.com [mailto:neoni...@googlegroups.com] On >> Behalf Of John Rehwinkel >> Sent: maandag 10 februari 2014 3:54 >> To: neoni...@googlegroups.com >> Subject: Re: [neonixie-l] Elesta EZ10/A/B tester refurbished! >> >> > I have a 4MHz TCXO that I have to scle down to 4, 2 ,1, 1/2 and 1/4 Hz. >> The first stage will be unfortunately made with some TTL, because of I >> dont >> know there is any tube that is able to do the job. >> >> I can think of lots of tubes that can do that easily. I'd probably use >> miniature dual triodes for size reasons. >> >> - John >> >> >> -- >> 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 neonixie-l+...@googlegroups.com. >> To post to this group, send an email to neoni...@googlegroups.com. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/958FB846-0760-43DD-BDAB-7226264 >> >> 57454%40mac.com<https://groups.google.com/d/msgid/neonixie-l/958FB846-0760-43DD-BDAB-722626457454%40mac.com>. >> >> >> For more options, visit https://groups.google.com/groups/opt_out. >> >> -- > 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 neonixie-l+...@googlegroups.com <javascript:>. > To post to this group, send an email to neoni...@googlegroups.com<javascript:> > . > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/d99e21c9-c698-475d-9636-f1c1437d26de%40googlegroups.com > . > For more options, visit https://groups.google.com/groups/opt_out. > -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/058572b7-07f3-4187-87fd-c3e3af0f9c6c%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
