Author Topic: What did you buy today? Post your latest purchase!  (Read 1413840 times)

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Online McBryce

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Re: What did you buy today? Post your latest purchase!
« Reply #7750 on: November 06, 2018, 12:54:11 pm »
The "bulbs" are Nixie tubes. They need around 170VDC to illuminate. Not for absolute beginners, but also not what most would consider very high voltage.

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Online CJay

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Re: What did you buy today? Post your latest purchase!
« Reply #7751 on: November 06, 2018, 12:58:42 pm »
Ham swap was good to me this morning, picked this up for $7.50

The display really is something else! It's beautiful!  I'd like to mess about with some of those bulbs but it's quite dangerous if you don't know exactly what your doing right? They need high voltage?

Agree with McBryce, they can be quite dangerous so you need to learn how to work with high voltage DC.

One of Dave's videos is about Nixie tubes and well worth a watch.

You can also get VFD 'tubes' which are a bit friendlier to work with.
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Offline daveyk

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Re: What did you buy today? Post your latest purchase!
« Reply #7752 on: November 06, 2018, 08:59:41 pm »
Nixi tubes are so nice!
 

Offline Vgkid

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Re: What did you buy today? Post your latest purchase!
« Reply #7753 on: November 07, 2018, 12:42:19 am »
*snip
I look forward to more pictures.
If you own any North Hills Electronics gear, message me. L&N Fan
 

Online vk6zgo

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Re: What did you buy today? Post your latest purchase!
« Reply #7754 on: November 07, 2018, 02:21:16 pm »
The "bulbs" are Nixie tubes. They need around 170VDC to illuminate. Not for absolute beginners, but also not what most would consider very high voltage.

McBryce.
Yeah!
You might say $&@#%€£¥¥#####&&&@@@!!!, if you touch it, but it is normally not capable of enough current to do you any real damage.
I don't know why people are so scared of a bit of DC HT---back in the day, we wouldn't have learnt anything if we had that attitude.

Just don't put your fingers in the wrong places---- after all, you wouldn't put your fingers in front of a jigsaw, or touch a soldering iron tip "just to see what happens!"
 
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Offline Cubdriver

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Re: What did you buy today? Post your latest purchase!
« Reply #7755 on: November 07, 2018, 05:48:17 pm »
The "bulbs" are Nixie tubes. They need around 170VDC to illuminate. Not for absolute beginners, but also not what most would consider very high voltage.

McBryce.
Yeah!
You might say $&@#%€£¥¥#####&&&@@@!!!, if you touch it, but it is normally not capable of enough current to do you any real damage.
I don't know why people are so scared of a bit of DC HT---back in the day, we wouldn't have learnt anything if we had that attitude.

Just don't put your fingers in the wrong places---- after all, you wouldn't put your fingers in front of a jigsaw, or touch a soldering iron tip "just to see what happens!"

It seems to me that people tend to be far too risk-averse these days.  I'm not advocating for wanton idiocy, but with a bit of knowledge and care, working on things with 170+ V rails carries little risk.  I started playing with old tube-type black and white TV sets at about eleven years old; they typically had B+ rails that were in the 300V neighborhood, along with 15-19kV CRT second anode supplies.  My knowledge about such things at that point came entirely from reading; no one in my family was into electronics.  (My father had a ham license and had done some shortwave stuff before I was born, but had no station or gear by the time I came along.)

I also remember old project books in the library in middle school that likely dated from the late 50s - early 60s (this was in the late 70s) that were all transformer powered vacuum tube projects.  Too many people today seem to think that anything over 12V is high voltage...

-Pat
If it jams, force it.  If it breaks, you needed a new one anyway...
 
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Offline capt bullshot

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Re: What did you buy today? Post your latest purchase!
« Reply #7756 on: November 07, 2018, 07:41:53 pm »
No nixie stuff, alas.
But the long time wanted electronic load to complement the typical TE addicts bunch of power supplies.


« Last Edit: November 07, 2018, 07:43:30 pm by capt bullshot »
Safety devices hinder evolution
 

Offline chickenHeadKnob

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Re: What did you buy today? Post your latest purchase!
« Reply #7757 on: November 08, 2018, 01:58:07 am »
@Bullshot

It is an electronic load that blows hot air in your face, and has female "safety" input?  :palm: :-DD That is a real winner.
 

Online TERRA Operative

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Re: What did you buy today? Post your latest purchase!
« Reply #7758 on: November 08, 2018, 03:04:07 am »
That fan looks to be a sucker, not a blower. :)
Any circuit design must contain at least one part which is obsolete, two parts which are unobtainable, and three parts which are still under development.

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Offline deadlylover

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Re: What did you buy today? Post your latest purchase!
« Reply #7759 on: November 08, 2018, 03:33:35 am »
I bought one of those Kogan DC pedestal fans. I like how it has a very low minimum speed setting compared to the $10 cheapies I have from Bunnings.

At the lowest speed it only draws a couple of watts for a gentle breeze which is perfect for sleeping. The $10 fan draws 30W/36W/40W for low/med/high, so it might pay for itself if it lasts >10 years ahahah.
 

Offline technix

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Re: What did you buy today? Post your latest purchase!
« Reply #7760 on: November 08, 2018, 06:59:38 am »
I decided to bite it and bought a YubiKey Neo authentication and cryptography module.
 

Offline julianhigginson

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Re: What did you buy today? Post your latest purchase!
« Reply #7761 on: November 08, 2018, 08:16:42 am »
I decided to bite it and bought a YubiKey Neo authentication and cryptography module.

What sort of things are you planning to use it with? General web service account login? Or computers you administer that are on the internet?
 

Offline technix

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Re: What did you buy today? Post your latest purchase!
« Reply #7762 on: November 08, 2018, 08:54:15 am »
I decided to bite it and bought a YubiKey Neo authentication and cryptography module.

What sort of things are you planning to use it with? General web service account login? Or computers you administer that are on the internet?
General Web services and PGP. Maybe also as login keys to my computer.
 
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Online gamalot

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Re: What did you buy today? Post your latest purchase!
« Reply #7763 on: November 08, 2018, 03:46:51 pm »
A FE-5680A rubidium reference clock, and fans, more and more fans!  ;D
 

Offline technix

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Re: What did you buy today? Post your latest purchase!
« Reply #7764 on: November 08, 2018, 03:52:19 pm »
A FE-5680A rubidium reference clock, and fans, more and more fans!  ;D
On the fast track to time nut? I got my volt nut derailed after I bought my LM399's.
 

Online gamalot

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Re: What did you buy today? Post your latest purchase!
« Reply #7765 on: November 08, 2018, 04:02:29 pm »
A FE-5680A rubidium reference clock, and fans, more and more fans!  ;D
On the fast track to time nut? I got my volt nut derailed after I bought my LM399's.

Now I think I need a GPSDO.  ;D
 

Offline technix

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Re: What did you buy today? Post your latest purchase!
« Reply #7766 on: November 08, 2018, 07:19:28 pm »
A FE-5680A rubidium reference clock, and fans, more and more fans!  ;D
On the fast track to time nut? I got my volt nut derailed after I bought my LM399's.

Now I think I need a GPSDO.  ;D
I already have a GPS-disciplined DS3231 TCXO on a Raspberry Pi set up to be my Stratum 1 NTP server inside my home network, and I have set up all my local computers (including the authentication server) to use that as the clock source. Usually I use GPS PPS as the synchronization pulse, but when GPS is flaky it switches to the DS3231.
 

Offline Vgkid

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Re: What did you buy today? Post your latest purchase!
« Reply #7767 on: November 08, 2018, 08:44:49 pm »
I decided to bite it and bought a YubiKey Neo authentication and cryptography module.
We use those at work.
If you own any North Hills Electronics gear, message me. L&N Fan
 

Offline technix

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Re: What did you buy today? Post your latest purchase!
« Reply #7768 on: November 08, 2018, 09:35:04 pm »
I decided to bite it and bought a YubiKey Neo authentication and cryptography module.
We use those at work.
I do know that a few companies do use those for work purposes.

Dow do you use them though?
 

Online blueskull

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Re: What did you buy today? Post your latest purchase!
« Reply #7769 on: November 08, 2018, 09:59:59 pm »
I decided to bite it and bought a YubiKey Neo authentication and cryptography module.
We use those at work.

Same here. 2FA is required for all employees in my facility. The second factor could be a YubiKey, or could be a text message.
 

Online CJay

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Re: What did you buy today? Post your latest purchase!
« Reply #7770 on: November 09, 2018, 09:16:00 am »
I decided to bite it and bought a YubiKey Neo authentication and cryptography module.
We use those at work.

Same here. 2FA is required for all employees in my facility. The second factor could be a YubiKey, or could be a text message.

I have a pile of 2FA kit for use with various contracts I work on, it's quite common.
M0UAW
 

Online MasterTech

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Re: What did you buy today? Post your latest purchase!
« Reply #7771 on: November 09, 2018, 10:19:51 am »
HP 410C Voltmeter in mint condition with accessories.
One has to resort to 60s technology to have a meter with 100Mohm input impedance up to 1500V
Also for non-believers of the unique piece of technology this is, here is it measuring a 50Mhz sine amplitude, put out 500mVrms, measured 520mVrms



« Last Edit: November 09, 2018, 04:25:43 pm by MasterTech »
 

Offline technix

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Re: What did you buy today? Post your latest purchase!
« Reply #7772 on: November 09, 2018, 10:58:40 am »
I decided to bite it and bought a YubiKey Neo authentication and cryptography module.
We use those at work.

Same here. 2FA is required for all employees in my facility. The second factor could be a YubiKey, or could be a text message.

I have a pile of 2FA kit for use with various contracts I work on, it's quite common.
Can those be wiped and reused? YubiKey can be wiped of its contents and repurposed.
 

Online CJay

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Re: What did you buy today? Post your latest purchase!
« Reply #7773 on: November 09, 2018, 01:14:05 pm »
I decided to bite it and bought a YubiKey Neo authentication and cryptography module.
We use those at work.

Same here. 2FA is required for all employees in my facility. The second factor could be a YubiKey, or could be a text message.

I have a pile of 2FA kit for use with various contracts I work on, it's quite common.
Can those be wiped and reused? YubiKey can be wiped of its contents and repurposed.

I suspect not by the end user, there must be a way to get your 'secret' onto them and they must be registered somehow as they can be revoked but the back end is not something I have access to.

I have torn one down after it had been revoked but other than a set of programming contacts there's nothing that looks as convenient as the Yubi
M0UAW
 

Offline technix

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Re: What did you buy today? Post your latest purchase!
« Reply #7774 on: November 09, 2018, 03:39:53 pm »
I decided to bite it and bought a YubiKey Neo authentication and cryptography module.
We use those at work.

Same here. 2FA is required for all employees in my facility. The second factor could be a YubiKey, or could be a text message.

I have a pile of 2FA kit for use with various contracts I work on, it's quite common.
Can those be wiped and reused? YubiKey can be wiped of its contents and repurposed.

I suspect not by the end user, there must be a way to get your 'secret' onto them and they must be registered somehow as they can be revoked but the back end is not something I have access to.

I have torn one down after it had been revoked but other than a set of programming contacts there's nothing that looks as convenient as the Yubi
Depending on what technology they used, it might be reprogrammable. At least (if you can find the documentations and if it is Flash reprogrammable) it can be wiped of all data and programming and you can build your own crypto code into it.
 
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