For in the bedroom, I find the 1x6 mux (at standard current) to be of acceptable brightness. On the contrary, a 1x6 mux VFD clock that I built is _way_ too bright for the house (like you can't sleep for the blue glow). I took the VFD clock to the office and it looks fine there. Relative brightness is a relative thing.
-Adam On Wed, Sep 19, 2012 at 9:22 PM, David Forbes <[email protected]> wrote: > On 9/19/12 6:39 PM, dr pepper wrote: > >> So why is multiplexing a bad idea, and static displays make tubes last >> longer?, does multiplexing accelerate cathode poisoning or something? >> I have 3 or 4 prototypes I've put together and they all use >> multiplxing, even the single tube ones use pwm as a brightness control >> (and so probably inherit the 'bad habits' too). >> >> > Multiplexing itself isn't bad for the tubes, but it requires higher drive > current to achieve the same brightness level, since each tube is > illuminated for a small percentage of the time. Therefore, a multiplexed > display of a particular brightness will not last as long as a direct-drive > display of the same brightness. > > On the other hand, Nixie tubes were designed for scientific equipment in > office or lab environments. Direct drive at the recommended current level > can be excessively bright for typical home lighting environments. > > The choice is best made based on the desired brightness level of the > display. > > -- > David Forbes, Tucson AZ > > > -- > 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 > https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> > . > > > -- 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 https://groups.google.com/groups/opt_out.
