Re: [neonixie-l] Cathode Construction: material? thickness?

2014-02-14 Thread Alex Tsekenis
Not to my knowledge for the two variants. On 14 Feb 2014 17:32, Kevin Keith krfke...@gmail.com wrote: On Friday, February 14, 2014 3:53:20 AM UTC-7, AlexTsekenis wrote: If you consider/allow the IN-13 bargraph to be a nixie tube, it uses a molybdenum cathode and nickel anode. Alex

[neonixie-l] Re: Introductions

2011-09-30 Thread Alex Tsekenis
Hi mike, you might have considered this and rejected it, but how about doing your first clock with numitrons? They don't require the elevated voltage and small ones can be bought off ebay cheaply. Alex On Sep 30, 10:18 am, Nick n...@desmith.net wrote: These are nice - I have some in the same

[neonixie-l] Re: Is everyone on holiday?

2011-09-22 Thread Alex Tsekenis
Sure Nick, must treat that rash ;-) I am Alex, and I guess I classify as a new member. I was on and off in the older group on yahoo. Mostly scientific research during the day, with an odd twist of high performance mixed signal electronic instrumentation circuits. Anything goes after-hours, from

[neonixie-l] Re: Wanted: MM53xx IC

2011-09-18 Thread Alex Tsekenis
Apparently there are part numbers in this family not suitable for my application. Only the 09 to 15 range is suitable, as in the datasheet. Thanks. -- 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] Re: SMPS newbie questions concerning the Aug2011 revision of MK1.5

2011-09-01 Thread Alex Tsekenis
Hi Ryan, The role of these low value resistors is to sense the peak inductor current within each operating cycle of the circuit. If the inductor, and hence the switching trransistor current Q1, current exceeds some value determined by these resistors, then the current cycle is quickly terminated.

[neonixie-l] Re: Blanking via all cathodes off

2011-09-01 Thread Alex Tsekenis
That will be fine Ryan. Output voltage of the drivers should be high enough to prevent breakdown of the gas. You will be getting some leakage current though, placing the tube's operating point in the 'dark discharge' region. Regards, Alex On Sep 1, 5:19 am, Ryan McDonald mcdonald.r...@gmail.com