[neonixie-l] Re: OT: Bonkers...

2011-01-19 Thread Nick
On Jan 18, 8:12 am, TurboMac (Turbo_Hobby) turboma...@gmail.com
wrote:
 AFAIK, new version (probably 2.3) will come with a much wider
 bandwidth.

h.w rev 2.3 is the current version and is essentially the same spec as
V1, except that the layout is updated and the case is metal (improved
EMC). There is a separate channel for the sig gen, and other small
changes.

The schematic is here: 
http://code.google.com/p/dsonano/downloads/detail?name=DS0201%20V2.3%20Scheme.pdfcan=2q=

Note that input A/D is still done by the uP.

Nick

-- 
You received this message because you are subscribed to the Google Groups 
neonixie-l group.
To post to this group, send an email to neonixie-l@googlegroups.com.
To unsubscribe from this group, send email to 
neonixie-l+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/neonixie-l?hl=en-GB.



Re: [neonixie-l] recommendation for anode resistor for 2x2 multiplexed IN-14s @166-170v?

2011-01-19 Thread Dieter Waechter

Hello David,
where have you found the factor 1.4 and what is your factor for 3x, 4x, 
5x muxing?

Dieter


For 2x multiplexing, use about 1.4 times the recommended cathode current
for continuous use.


--
You received this message because you are subscribed to the Google Groups 
neonixie-l group.
To post to this group, send an email to neonixie-l@googlegroups.com.
To unsubscribe from this group, send email to 
neonixie-l+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/neonixie-l?hl=en-GB.



Re: [neonixie-l] recommendation for anode resistor for 2x2 multiplexed IN-14s @166-170v?

2011-01-19 Thread David Forbes

On 1/19/11 11:04 PM, Dieter Waechter wrote:

Hello David,
where have you found the factor 1.4 and what is your factor for 3x, 4x,
5x muxing?
Dieter


For 2x multiplexing, use about 1.4 times the recommended cathode current
for continuous use.




It's an educated guess. I used 3x current for 6 way multiplexing in the 
clocks I made, so 1.4x seems reasonable for 2 way. It takes 
experimentation to find the best value, and there is a tradeoff of tube 
life vs brightness.



--
David Forbes, Tucson AZ
http://www.cathodecorner.com/

--
You received this message because you are subscribed to the Google Groups 
neonixie-l group.
To post to this group, send an email to neonixie-l@googlegroups.com.
To unsubscribe from this group, send email to 
neonixie-l+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/neonixie-l?hl=en-GB.