Re: [neonixie-l] LM9022 on ebay

2014-11-03 Thread 'threeneurons' via neonixie-l
From reading both datasheets, the specs are so close, if not identical, they are the same part. Even the pinout is the same ! So use the LM4871. Cutting the top off of one, and looking at the guts, may not reveal anything. Chip makers periodically change the mask set of all ICs, to keep up

Re: [neonixie-l] LM9022 on ebay

2014-11-03 Thread taylorjpt
Pulled the die from one of my ca 2001 LM9022s and it was indeed an LM4871 (Picture later). This makes me think that the LM9022 is a way to absorb fallout from the LM4871 line, and if they don't have enough fallout they could just use good LM4871s instead. jt -- You received this message

Re: [neonixie-l] LM9022 on ebay

2014-11-03 Thread taylorjpt
Images of LM9022 die... http://ppl.ug/PCAptU3GN6g/ http://ppl.ug/5DTx4xMnVT4/ http://ppl.ug/dDfWdwPaa4I/ -- 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

Re: [neonixie-l] LM9022 on ebay

2014-11-03 Thread Dekatron42
That is most interesting! Thank you for taking the time and effort to show us this! /Martin On Monday, 3 November 2014 18:19:07 UTC+1, taylorjpt wrote: Pulled the die from one of my ca 2001 LM9022s and it was indeed an LM4871 (Picture later). This makes me think that the LM9022 is a way to

Re: [neonixie-l] LM9022 on ebay

2014-11-03 Thread Nick
You get special points for that - very interesting! Cheers Nick On Monday, 3 November 2014 19:31:04 UTC, taylorjpt wrote: Images of LM9022 die... http://ppl.ug/PCAptU3GN6g/ http://ppl.ug/5DTx4xMnVT4/ http://ppl.ug/dDfWdwPaa4I/ -- You received this message because you are subscribed to

[neonixie-l] Socket alternatives for B9012

2014-11-03 Thread Jonathan Peakall
Hi All, I just got some B9012's from Walter. He says he has never even seen a socket for these, so I tjink the odds of finding any are pretty low. :-( So, over the years I have seen some discussions about various alternatives. I tried to search through the archives but couldn't find anything

[neonixie-l] Re: Socket alternatives for B9012

2014-11-03 Thread Joe Zatarski
if you find anything relevant, let me know. Right now, I'm planning on using just pins (maybe mounted on a board, maybe flying lead style, don't know yet) so any improvement you find over that would be appreciated. On Monday, November 3, 2014 8:30:35 PM UTC-6, Jonathan wrote: Hi All, I

Re: [neonixie-l] Re: Socket alternatives for B9012

2014-11-03 Thread Jonathan Peakall
What pins exactly are you using? I think that is what it is going to come to. JOnathan if you find anything relevant, let me know. Right now, I'm planning on using just pins (maybe mounted on a board, maybe flying lead style, don't know yet) so any improvement you find over that would be

Re: [neonixie-l] Re: Socket alternatives for B9012

2014-11-03 Thread Joe Zatarski
I'll let you know when I know. On Monday, November 3, 2014 8:55:50 PM UTC-6, Jonathan wrote:  What pins exactly are you using? I think that is what it is going to come to. JOnathan if you find anything relevant, let me know. Right now, I'm planning on using just pins (maybe

RE: [POSSIBLE SPAM] [neonixie-l] Socket alternatives for B9012

2014-11-03 Thread chuck richards
When I built my first nixie clock back in 1994, I had no sockets and made my own. They are for NL-807 and NL-803 tubes. They have 9 pins in a circle and three pins in the center. Same pinout pattern as NL-840. Here is what I did: Took one of the tubes and poked the pins through a piece of white