[neonixie-l] Re: HV5523/HV5623

2017-10-28 Thread SWISSNIXIE - Jonathan F. 
Image  attached

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[neonixie-l] Re: HV5523/HV5623

2017-10-28 Thread newxito 
 

Very interesting, thanks! I will order some of these chips but I think I 
will not be able to solder them correctly. There are some videos on youtube 
showing how to solder QFN packages using tons of flux and hot air...

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[neonixie-l] Re: HV5523/HV5623

2017-10-28 Thread gregebert 
I've used a heat gun to remove surface mount parts, but never to install 
one. I removed a device that looks like the aforementioned QFN, and the 
metal die-paddle on the bottom took a lot of heat to remove the part. I 
toasted the PCB because there was no heat-control; the PCB delaminated and 
had small bubbles but nothing actually 'burned'.

If you are going to assemble with these, use a reflow oven. I've seen 
several articles online about using a modified toaster oven. I only use SMT 
devices with visible pins or nubs, and only by hand-soldering.

Perhaps electrically-conductive epoxy could be used for die-paddle on the 
bottom of the device, and hand-soldering for everything else ?

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[neonixie-l] Re: HV5523/HV5623

2017-10-28 Thread Nick 
I was surprised that the data sheet didn't give more thermal information 
relating to the pad  - the chip, under load, dissipates up to 3.4W in a 
very small package, so the pad is important.

It'd have to be reflow for it to work - that along with appropriate board 
design to carry the heat away...

Nick

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[neonixie-l] Re: IV-27m VFD tube

2017-10-28 Thread Roddy Scott 
Dieter Wachter has a great reference site where you can pick up a lot of 
information from the original data sheets. 
The one for the IV-27m is in Russian but you can translate it via Google 
with a bit of time.

>From Dieter's Nixie Tube Data Archive site - IV-27.pdf 
 

This from the Radio Museum - IV-27m 


Here is a site by Stefan Weigert with similar information - IV-27m 


Googling the information is the easiest way to get details, foreign 
language sites often get ignored but can be a great source.


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[neonixie-l] Babcock display SP-431-001

2017-10-28 Thread kosbo.com 
Hi All,

On ebay I was looking for this display quite a while.  I have  a few PCBs  
designed for Babcock display SP-431-001 and really want to find display and 
add the clock to my personal clocks collection.

I have been watching  this lot for a few 
months https://www.ebay.co.uk/itm/182853730802?ul_noapp=true

and a few times contacted seller to ship it to the UK, but he never replied 
to me, so I thought I would ask our NeoNixie community for help.

I am wondering,  if someone from the US could help me to  buy it  and 
resend it to me to the UK address. Of cause I'll cover all expenses. 


Thanks in advance, Konstantin


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Re: [neonixie-l] Babcock display SP-431-001

2017-10-28 Thread Dylan Distasio 
I can help with this.  Message me off list.

Best,
Dylan

On Oct 28, 2017 9:24 AM, "kosbo.com"  wrote:

Hi All,

On ebay I was looking for this display quite a while.  I have  a few PCBs
designed for Babcock display SP-431-001 and really want to find display and
add the clock to my personal clocks collection.

I have been watching  this lot for a few months https://www.ebay.co.uk/
itm/182853730802?ul_noapp=true

and a few times contacted seller to ship it to the UK, but he never replied
to me, so I thought I would ask our NeoNixie community for help.

I am wondering,  if someone from the US could help me to  buy it  and
resend it to me to the UK address. Of cause I'll cover all expenses.


Thanks in advance, Konstantin


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[neonixie-l] Obtaining 2 digit Panaplex displays

2017-10-28 Thread Ben Pye 
Hey,

I've been looking for some 2 digit Panaplex displays. As these are for 
something I want to design the exact model is unimportant. I would prefer 
the smaller displays, SP-332/336/732/732 but the SP-352/356/752/756 might 
also work. I have looked at alternatives like the SP-151 which might work 
if it comes to it but I would prefer the 2 digit displays. Ideally I'd have 
one of the SP-332/732 models which has dual cathodes. If anyone has any 
idea where to look that'd be great, I'm in the UK which is a bit of a pain 
as these were US made. I have seen the odd one on eBay but they're asking 
for 50$/ea or something crazy.

Thanks,
Ben.

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[neonixie-l] Re: Babcock display SP-431-001

2017-10-28 Thread blkadder 
I am willing to help you out with this.  The seller does not say how big 
the display is, so might you know how big the package may be?  I will send 
you a PM shortly.

Ron

On Saturday, October 28, 2017 at 9:24:34 AM UTC-4, kosbo.com wrote:
>
> Hi All,
>
> On ebay I was looking for this display quite a while.  I have  a few PCBs  
> designed for Babcock display SP-431-001 and really want to find display and 
> add the clock to my personal clocks collection.
>
> I have been watching  this lot for a few months 
> https://www.ebay.co.uk/itm/182853730802?ul_noapp=true
>
> and a few times contacted seller to ship it to the UK, but he never 
> replied to me, so I thought I would ask our NeoNixie community for help.
>
> I am wondering,  if someone from the US could help me to  buy it  and 
> resend it to me to the UK address. Of cause I'll cover all expenses. 
>
>
> Thanks in advance, Konstantin
>
>
>

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Re: [neonixie-l] Obtaining 2 digit Panaplex displays

2017-10-28 Thread H. Carl Ott 
 If you can't find a closer supplier,  I have some spare NOS SP-336s that I
can let go. I'd have to ship from the US.

 If interested, contact me off list with the quantities you are looking
for.

carl

Henry Carl Ott   N2RVQhcarl...@gmail.com

On Sat, Oct 28, 2017 at 9:45 AM, Ben Pye  wrote:

> Hey,
>
> I've been looking for some 2 digit Panaplex displays. As these are for
> something I want to design the exact model is unimportant. I would prefer
> the smaller displays, SP-332/336/732/732
>  but
> the SP-352/356/752/756 might also work. I have looked at alternatives like
> the SP-151 which might work if it comes to it but I would prefer the 2
> digit displays. Ideally I'd have one of the SP-332/732 models which has
> dual cathodes. If anyone has any idea where to look that'd be great, I'm in
> the UK which is a bit of a pain as these were US made. I have seen the odd
> one on eBay but they're asking for 50$/ea or something crazy.
>
> Thanks,
> Ben.
>
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> You received this message because you are subscribed to the Google Groups
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> gid/neonixie-l/b022a8ea-c9e5-45bd-9ebd-48b2e4ef3d4c%40googlegroups.com
> 
> .
> For more options, visit https://groups.google.com/d/optout.
>

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[neonixie-l] Re: PV Electronics R568 Clock Project With Black R|Z568M Nixie Tubes

2017-10-28 Thread Roddy Scott 

>
> Your clock is looking excellent, Edward, those colon tubes you made are in 
> keeping with your overall design and make your clock stand out. The finish 
> on the aluminium is fantastic and sets off the brass parts really well.
>
Great to see a project realised from start to finish. 

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