That's good to know. I'll try the offending tube in my Nixiechron to see if the blue spot dares to show it's ugly face!
On Fri, Jul 15, 2011 at 8:41 AM, Dieter Waechter <[email protected]> wrote: > > Thanks for the possible explanation Dieter. Does this fit with the fact >> that the same tube shows the same defect on just one digit in multiple >> different IN-18 clocks? >> > > First: Note that it is NOT a defect. It is a wrong driver circuit. The > mistake is made by the circuit designer, not by the tube. > Now the answer: > Yes and no. > If you try the same tube in a correct designed clock (nixiechron, or > nocrotec IN-18 clocks for example) 100% no IN-18 will show a blue spot. > But, another mistake always is made with the IN-18 tubes. > This is the rated current. > To get a real high definition readout and the magic purple haze the tubes > MUST be driven with 6mA, what is the REAL rated current of IN-18 tubes. And > of course they should not be multiplexed. > The only clocks I know ad hoc wich drive them without multiplex, without > Ucc and with 6mA are the Chronotronix IN-18-V2, the Nocrotec IN-18-V3 and > the soon coming clock kits: IN-18-V4 and V5. But I'm sure there are some > other clocks out there. > So be careful: a blue spot means that the driver circuit IS WRONG! > > Dieter > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To post to this group, send an email to [email protected]. > To unsubscribe from this group, send email to neonixie-l+unsubscribe@** > googlegroups.com <neonixie-l%[email protected]>. > For more options, visit this group at http://groups.google.com/** > group/neonixie-l?hl=en-GB<http://groups.google.com/group/neonixie-l?hl=en-GB> > . > > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
