[neonixie-l] Re: LM9022 on ebay
I found this comment over at Texas instruments forum: The LM9022 (VFD Filament Driver) was a marketing spin of the LM4871 http://www.ti.com/product/LM4871 (3W Audio Power Amplifier) http://www.ti.com/product/lm4871; http://e2e.ti.com/support/power_management/isolated_controllers/f/188/p/289255/1009125.aspx#1009125 Does anyone here at the forum know if this is a substitute for the LM9022, it was a Ti employee who wrote that comment (check the forum thread). /Martin On Saturday, 11 October 2014 20:01:35 UTC+2, Sgitheach wrote: Hi The LM9022 IC which is a fairly niffty VFD driver has turned up on ebay item 171472657676 No affiliation. Grahame -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/d168af39-fbf3-4487-854c-bb32de847375%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] Re: All valve/tube clock
Really nice clock, I wish I had that many Z70Us. /Martin On Monday, 6 October 2014 16:09:38 UTC+2, Sgitheach wrote: Hi I have been working on a new trigger tube clock that uses the Z700U trigger tube. This tube has a priming electrode so works in complete darkness. Results are very good. Details are here: http://www.sgitheach.org.uk/nixie8.html Enjoy Grahame Highlands Scotland -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/8f5f998d-f094-4c0a-9cf4-103da8071fd5%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] Re: All valve/tube clock
Very please with my kit - thanks Grahame! Custom transformer arrived yesterday, so all set now for some quality time in the workshop over the holiday! Nick -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/4ff917a7-d2d2-43b1-be89-5994caf28576%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] Re: LM9022 on ebay
Have to dig into the details, but I could see it. I've driven VFD filaments from the much older LM1877, before National got swallowed up by TI. Its a stereo amp, which I rigged in a bi-phase configuration, much like the LM4871. All these parts belonged to National. I wonder if that employee was a National employee, and came along with the acquisition ? On Thursday, October 30, 2014 12:36:48 AM UTC-7, Dekatron42 wrote: I found this comment over at Texas instruments forum: The LM9022 (VFD Filament Driver) was a marketing spin of the LM4871 http://www.ti.com/product/LM4871 (3W Audio Power Amplifier) http://www.ti.com/product/lm4871; http://e2e.ti.com/support/power_management/isolated_controllers/f/188/p/289255/1009125.aspx#1009125 Does anyone here at the forum know if this is a substitute for the LM9022, it was a Ti employee who wrote that comment (check the forum thread). /Martin On Saturday, 11 October 2014 20:01:35 UTC+2, Sgitheach wrote: Hi The LM9022 IC which is a fairly niffty VFD driver has turned up on ebay item 171472657676 No affiliation. Grahame -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/bf14d0a0-fcf7-43e9-87dc-3587748d9454%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] Re: LM9022 on ebay
The two parts look nearly identical from the datasheets. Since it was common to simply add an application diagram to an existing datasheet instead of creating a new part number, the LM9022 was probably a way to use LM4871s that failed some of the audio amplifier specs that would be critical to an audio aplication but would be of no concern for driving a VFD. I have 200 of the LM9022s, I'll get some of the LM4871s and compare them. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/1b952eb5-40ba-427e-9dbb-4ed36db29b8e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] LM9022 on ebay
The two parts look nearly identical from the datasheets. Since it was common to simply add an application diagram to an existing datasheet instead of creating a new part number, the LM9022 was probably a way to use LM4871s that failed some of the audio amplifier specs that would be critical to an audio aplication but would be of no concern for driving a VFD. I have 200 of the LM9022s, I'll get some of the LM4871s and compare them. I'm tempted to get one of each and have a friend decap and examine them. - John -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/DA45B51B-FDE6-4263-B763-C86A35296C62%40mac.com. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] Re: Just got 80 new Burroughs PIXIE B-9012 tubes, if any interest
I too would be interested in some. Thanks. /mike On Monday, October 20, 2014 5:06:34 PM UTC-4, Walter2 wrote: These are the same glass diameter as the common B-5092/8421 nixies (not as tall), but instead have a circle of 10 digits on the face, 0-9 clockwise, with zero at the top. Unlike Nixies, more than one digit can be on at the same time (if cathode resistors are used, rather than a common anode resistor). They need only +150VDC, and very little current. The digit is small, but the appearance is very interesting, like a Dekatron, but with digits rather than dots. I don't ever recall seeing them used in any commercial gear, but presumably they did appear someplace, maybe another list member has that info. They can be used as status displays to show up to 10 data items at the same time. They can almost be used as a single tube for hours as well, because two digits can be on at one time (1+0 to show 10, but NOT 1+1 to show 11, 1+2 to show 12, for example), a novel and more clock-face-like appearance, but not really ideal. The base is a non-standard 13 pin (3 center pins, outer circle of 10), so I have no hope for sockets, but clearly loose pins will work fine to a PCB. Because the numbers appear to race around the outer diameter of the tube when cycled, they would provide very attractive seconds/minutes displays in clocks. Driving is dead simple, ground the cathode to light, just as with regular Nixies, but less current is required (larger resistor). Because more than one can be on at a time, fading is possible to enhance motion. There are also simliar tubes from Philips in europe, but their drive is quite complex, and they are not interchangeable with these. Anyway, I will have them posted up to Sphere Research shortly, or you can just email me for more details. I have the factory data sheet as well, and I will email the PDF to anybody interested. They will be quite cheap, but there's only this one single batch available, no more stock after this, and frankly I was surprised to get these. The appearance of this batch is excellent. all the best, walter ( walter2 -at- sphere.bc.ca ) sphere research corp. ( www.sphere.bc.ca ) -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/a4027e69-f169-443c-a6d7-f549b2383ea7%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Just got 80 new Burroughs PIXIE B-9012 tubes, if any interest
I’m interested. Tell me about pricing. // Per. On 20 Oct 2014, at 23:06, Walter2 walt...@sphere.bc.ca wrote: These are the same glass diameter as the common B-5092/8421 nixies (not as tall), but instead have a circle of 10 digits on the face, 0-9 clockwise, with zero at the top. Unlike Nixies, more than one digit can be on at the same time (if cathode resistors are used, rather than a common anode resistor). They need only +150VDC, and very little current. The digit is small, but the appearance is very interesting, like a Dekatron, but with digits rather than dots. I don't ever recall seeing them used in any commercial gear, but presumably they did appear someplace, maybe another list member has that info. They can be used as status displays to show up to 10 data items at the same time. They can almost be used as a single tube for hours as well, because two digits can be on at one time (1+0 to show 10, but NOT 1+1 to show 11, 1+2 to show 12, for example), a novel and more clock-face-like appearance, but not really ideal. The base is a non-standard 13 pin (3 center pins, outer circle of 10), so I have no hope for sockets, but clearly loose pins will work fine to a PCB. Because the numbers appear to race around the outer diameter of the tube when cycled, they would provide very attractive seconds/minutes displays in clocks. Driving is dead simple, ground the cathode to light, just as with regular Nixies, but less current is required (larger resistor). Because more than one can be on at a time, fading is possible to enhance motion. There are also simliar tubes from Philips in europe, but their drive is quite complex, and they are not interchangeable with these. Anyway, I will have them posted up to Sphere Research shortly, or you can just email me for more details. I have the factory data sheet as well, and I will email the PDF to anybody interested. They will be quite cheap, but there's only this one single batch available, no more stock after this, and frankly I was surprised to get these. The appearance of this batch is excellent. all the best, walter ( walter2 -at- sphere.bc.ca ) sphere research corp. ( www.sphere.bc.ca ) -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/a53988e3-f11f-42d5-b1bb-11ae2550e8b4%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/FCB95EC5-5CC7-465F-AA05-F258166BB0B5%40gmail.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Re: All valve/tube clock
Grahame is correct - the transformer is $90 + taxes + shipping from: http://www.sumr.com It'll be ready in two to three weeks. Its a busy time for me so that'll give me lots of time to build the boards. The transformer will weigh ~0.9 Kg so shipping may not be too high (they are a twenty minute drive for me). This is a marvelous clock and Grahame has been incredibly helpful. He found SumR for me - even though it is the same as Primrose Audio who I knew about and am planning an audio project with their audio transformers. Langrex seems to have lots of D700U's - I had 100 already. Tom On 10/30/2014 9:24 AM, Grahame Marsh wrote: Nick Good progress then. Do get back to me with questions please. I look forward to seeing your final build. I helped Tom Nolan in Ontario (on Neonixie) find a winder in Toronto who quoted $90 Canadian (presumably plus postage and tax, if any). He was very suprised by the price in a pleased way as he had assumed it would be expensive. The built clock here continues to work... waiting for the case from Nick Stock (who is in the UK with family for his mother's wedding). Cheers Grahame On 30/10/2014 12:29, Nick wrote: Very please with my kit - thanks Grahame! Custom transformer arrived yesterday, so all set now for some quality time in the workshop over the holiday! Nick -- 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 neonixie-l+unsubscr...@googlegroups.com mailto:neonixie-l+unsubscr...@googlegroups.com. To post to this group, send email to neonixie-l@googlegroups.com mailto:neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/4ff917a7-d2d2-43b1-be89-5994caf28576%40googlegroups.com https://groups.google.com/d/msgid/neonixie-l/4ff917a7-d2d2-43b1-be89-5994caf28576%40googlegroups.com?utm_medium=emailutm_source=footer. For more options, visit https://groups.google.com/d/optout. -- 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 neonixie-l+unsubscr...@googlegroups.com mailto:neonixie-l+unsubscr...@googlegroups.com. To post to this group, send email to neonixie-l@googlegroups.com mailto:neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/54523C23.2050401%40googlemail.com https://groups.google.com/d/msgid/neonixie-l/54523C23.2050401%40googlemail.com?utm_medium=emailutm_source=footer. For more options, visit https://groups.google.com/d/optout. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5452A534.9080608%40gmail.com. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] everything that's wrong about instructables summed up in one handy article
I tut and sigh at some of the lax safety practices on Instructables electrical projects sometimes, even leave some helpful comments occasionally, but this one takes the proverbial! For your amazement and enjoyment (nothing to do with Neon but high voltages are involved) : “You are taking a risk just having this thing near you because it is a death trap that you voluntarily attach to your hand, complete with amateur electrical wiring and warranty-voiding alterations. But who cares because it is super cool.” http://www.instructables.com/id/Taser-Glove-Legit-Version/?ALLSTEPS -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5452A915.4030909%40cqr-ltd.com. For more options, visit https://groups.google.com/d/optout.
