With so many youtubers that THINK they are teachers, I'm glad to find one that truly is a teacher ! Please don't let some of these commenters get you to change the way you communicate the information to us ! I believe the majority of us need your way to hold our interest and go on from there. Subed and looking forward to next installment, thank you sir !

You sir have a talent for teaching that I've found to be quite rare. Thank You'

I really enjoy the simplicity and teaching aspects of this video.

Mr. Carlson's Lab? More like Mr. Carlson's EMPIRE! You have a very impressive collection of equipment and knowledge. Great videos and explanations. Thanks for sharing!

Perfect! I really liked the calculation info for the base resistor. I'd like to see more of that

I'm looking forward to the next episode. Great video as always Paul!

Great video Paul, you just gave me a solution for a problem I have with the old IC in a Freq. Difference Meter. Looking forward to the rest of the series. Keep them comming, Greg

As always a big thumbs up. I just found you channel a month ago and I'm enjoying every minute. Thank you for what you do.

Hi Paul, Great explanation of the Nixie Tubes. Hope all is good. Thankyou for sharing your knowledge and experience. Happy Summer, C.

Excellent video. You make the theory very easy to follow and understand - thank you. Looking forward to the next installment.

It's videos like this that make the tubes' community still alive! Thanks!

This is like a classroom. I do not think I have ever heard a finer explanation of resistor value computation.A really top quality video. Thanks from all us viewers!

Again, you rock! So clear, so precise, so interesting! I learned a great deal of this at believe it or not the National Radio Institute. Used some of it on occasion but in the plug and play world allowed much of it to fade away! You are a class of your own. Thanks for taking the time to do these video's! I love them. Included are your video and editing the techniques. Wonderfully assembled. Cecil B. Demille would be envious!

clear, concise, easy to understand. THANKS!

So excited about a build series!

Thanks Paul, going to enjoy this series. Would love to have a schem of this board. Thank you again pal. Carl

Very informative. Looking forward to this series!

Excellent video as always!

Hello Paul. Thank you so much for this awesome series. I am looking forward to each and every video. All my very best. Bobby

Wow! Lots of information revealed in a single video; current limiting, the principles of transistors, Nixie tubes and ICs. I liked the way you explain the math behind current limiting. That's a great video for a beginner like me. Thanks.

Very well explained! Time to find the box of nixies I bought 10 years ago and finally do something with them.

Your lab is so impressive !

awesome job explaining everything.....I can't wait to explore your other videos

Fantastic video, looking forward to the next :D

Paul, Great video. You are very easy to learn from. Your videos are the best.

Really enjoying this Paul, looking forward to the rest of this series, and yes Nixie tester diagram would be appreciated

Excellent information, Thank you for taking the time to put this awesome videos.

This will be a great series Paul. I love Nixie tubes and would like to build a counter. Great explanation on how to tube the different elements on. A project such as this would be great for folks to learn on. Thanks for the video and big thumbs up.

Nice, I look forward to the rest of the series :)

very educational video! You are a very gifted teacher

Great video! I designed and built a Nixie based 24 hour clock (with seconds display) about 30 years ago. They were old school even back then :-). Good to see the technology still generates interest.

Nice bench set-up!

Great presentation. In one video, you've convinced an expert electronics technician to subscribe to your channel. That's tough to do. Congratulations.

Mr Carlson, I love all your video. Thank you. I learn a lot just watching. I hope you have a lot more coming .

Nixies are cool. I have two instruments from the Heathkit company that use nixies. IM-1002 digital voltmeter, 3 and one half digit display. The half digit is acquired using an NE-2H lamp. The other is IB-1102 which is an eight digit frequency counter that measures from one Hertz to 120 MHz . They were purchased in kit form in approximately 1974. Both still function beautifully. All of the digits are still bright. 42 years and going strong. I did have to repair them a couple of times, but Heath's manuals are superb.

I must say this a very ambitious series. I have always enjoyed and learned from your videos. Right now, since I am a working guitar player, my focus is on tube guitar amps. I have seen your videos on tube amp and they were great. In the future, if you have the interest, a series on a tube amp build would be of great help to me and others. Thank you for sharing, your vast knowledge of electronics. Thankz

Thanks mr Carlson looking forward to the next video Big thumbs up

I really love your thorough explanations! Including the math is always great!

Wow! Thank you very much for starting this project. Here is a promise, After you finish the series I'll definitely use Nixie tubes in the build that I'm planning to do. Will send the photos of the finished thing. Many thanks!

more videos! this is by far my favorite channel.

That was excellent Mr C. I understand exactly how this works but I'd like to see the schematic if you have time for it in the next video. Awesome as always!

A good video again, looking forward to part 2.

Hi Paul, Bravo, excellent video. Looking forward to the others. 73

Thank you for this video. Very informative, says all that needs to be said. I hope for a followup video focused on a proper design of stable 170V source.

I'm with you on this. I have a bunch of the Russian IN-12A's IN-2's and such lying around which I'll finally get a chance to do something with. I also a a set of the Russian Ceramic Military Grade chips you are referring to but I'm more likely to follow along and use the easier replaceable components. Nice job on this one - great idea. I'm looking forward to the series.

Very informative video. Thanks very much for the simple maths for calculating hard turn on. I wish some of my lecturers were as good as you!

This was highly informative, thank you!

Well explained. I sent the link to this video to a friend because you explain it so much better than I can do myself. :)

Mr. Carlson, I think a lot of us who enjoy your videos would really appreciate a video on your educational background and how you became so knowledgeable. I have a Doctorate and have been in my Profession 35 years and doubt I know as much about my field as you do about yours. I just think a lot of us would be very interested in how you learned everything you demonstrate in these videos.

Nice multimeter! Excellent intro to nixie tubes. Thank you!

I always learn so much from your videos!

Awesome video! Cant wait to see the other parts

Thumbs up , Thank you for the theory behind this old tech Nixie Tubes .

Thank you so much for all the Videos. I really enjoy them and learn a ton.

Hi there Paul, thank you for all the great videos. You are like a pro when it comes to teaching. This is the best channel to learn from simple to complicated electronics. I can see you know what you are talking about. Respect. Regards from South Africa.

Thank you for this upload!! This is greatly appreciated :)

That's a cool tube. Looking forward to the next parts; since I'm joining late they're already there for me. :)

Loved it, Thanks Mr Carlson.

Got a new box of 100 tubes somewhere. Going to have to dust them off and build one. Been looking for a good project for them. Great job on the explanation. Looking forward to the future episodes. Mike

WoW. This was just in time. I'm going to do a project with nixies!!! Thanks!

Cool Video. Looking forward to the Next Epsiode. You're a Great Teacher, thanks for sharing your Knowledge, I really enjoy watching your Videos.

Subbed! I like that you're very thorough. I'm in the middle of making a schematic in Eagle for a nixie clock, so I'll be waiting for the next video!

Very clear and informative with the maths. Perfect to understand for a first year engineering student. Just gained a subscriber! Keep it up. Would love to know your favourite way to supply the 120 ish volts needed without hooking it up to an external supply.

Thank you very much for the video and looking for the next episodes. It would be great to have the schematic of the circuit.

Loved the video, I am a novice in electronics and this was very cool to learn about. Don't think I am ready to mess around with NIXIE tubes just yet. Thanks for sharing.

Good info Mr Carson.

Very interesting and excellent lesson! Yes, please show the schematic. Thank You!

Great episode as always! I just got the solution for nixie clock driving, Thank you :D now just designing a board for it.

Please Paul, make some kits with this an take all my money !! Thanks for sharing ...

Real Good Paul, interesting and yes can't wait till the next Flick series. Thanks for your efforts and time 73's Paul

Excellent video I would really like to thank you for your time and effort , I suspect i will not get much sleep tonight after finding your channel.

First class video Paul! Thanks for sharing! 73

Great video. Thank you very much.

GLORIOUS!

hi liked the video , I would like to see more videos on tube equipment as the subject is quite interesting , keep it up.

You are a fantastic lecturer!

Excellent learning episode as always. The Gold Standard.

Thank you Mr. C especially for the math. "Teach a man to fish" a resistor and he can calculate one for any number of applications.

Your vids are pure gold! I'm addicted to them now :) And yeah, I was thinking about making nixie counter but decided to use VFD's. Nixies are very popular, giving sellers excuse to put bizarre price tags on them.

Great video. I can't wait for the next one. I do have a question though, could you use a fet instead of a transistor?

Thanks for the voltage warning.

Great video! Keep up with the math too. For me, it is never redundant or boring.

Paul, now ivé been watching several of your videos, great content, ivé also recommended several guy´s your channel for educational purposes, and the reponse is all thumbs up :-)) - Great work. -- One thing they all ask me is how does one signaltrace fx. a radio repair, how do i use a oscilloscope for determining a faulty generator, if i have a electronic device of some sort, how do i start investigating the problem etc etc, ..can you consider doing some videos in the future about the practical use of scopes, sig. generators, multimeters, etc Great work /W

great video! Thank you!

Excellent, very helpful. How about a video on the vacuum fluorescent display ?

Nice job on the detailed visual explanation. I know there are many places that sell Nixie tube desktop clocks but I want to build one from scratch using an old Analogic AN2534 Voltmeter unit. It has 4 Nixie tubes plus the high voltage source. Now that you showed me how to drive the Nixie tubes I will just disconnect the voltmeter driver section and feed in my own circuit (basically a Silicon Labs Busy Bee Microcontroller which will multiplex four CD4028 BCD drivers). In order to make this compact I'm using OnSemi's MSD42WT1G NPNs (in a surface mount SC-70 package) > 32 transistors should do it for a 4-digit 12hour clock.

Hi Paul, I loved the nixie video. I have not used them before although I am used to tube circuitry. You mention in the video about showing the schematic for the frequency counter, I would like that thank you. I look forward to your video No.2................Berni

Probably one for Patreon once I figure that out. I love indicators of all kinds. I can sit and watch old school VU meters move for hours. Nixies are one of my favorites and built a couple of clock kits. I would like to build the frequency counter as well but I am also fascinated by the magic eye tubes. I would love to see a standalone project (or one that could be added to the counter) that could be use for tuning or signal strength.

Great video!

Great video. You can get creative and control a bunch of tubes with only 3 mcu pins (well 4 if you include ground) by using shift registers(which are easily daisy chained) to drive the BCD to decimal converters. You could use shift registers directly, but most only have 8 outputs, not 10 and if u want to use an mcu's hardware spi peripheral (as opposed to bit banging), most of those send data by the byte.

Paul, I can remember when digital instruments and calculators first came out. These used nixie tubes for their digital displays. (I guess I am dating myself) Anyway, nixie tubes have always had a definite "cool factor" in my opinion. A couple few years ago, I decided to design a nixie tube clock. After considering a couple different design approaches, I decided to make use of the very low cost Arduino UNO as a computing platform and design a 6-digit nixie display that would interface to the UNO. The circuit I designed utilizes a 12 volt AC input from a 1-amp Plug-in wall transformer. The use of low voltage AC power allowed an easy way to produce the needed high voltage for the nixie tubes (using a transformer), low voltage DC to run the UNO and other logic, and also provide a reliable 60 Hz time base for time keeping. I developed a PC board for all the circuitry, interface to the UNO, and a long 64 bit shift register which drives the individual elements in 6 nixie tubes plus decimal points in 3 of the nixies. I chose to use the IN-8-2 nixies (from Russia) as they are a nice size, have a decimal point, and feature distinctive "2" and "5". I also incorporated some additional features on the board - a power relay, speaker, potentiometer, temperature sensor, and several switch inputs. The UNO program I wrote runs the 6-digit display as a clock with added date and timing functions. I still have a couple of unused PC boards and would be happy to send you one at no cost. Might make for an interesting video. Let me know if you are interested.

Yes I would like to see the schematic. Thank you in advance.Lou

I would like to see a schematic on the nixie tube project. I like the way you presented the nixie tube operation and ideas using the nixie tube

Paul, Looking forward to the series. I liked the countdown at the beginning using a Nixie tube. If one wanted to save on space and has smd skills, could the smd version of the mpsa42 be used? Also noticed a dryer hose up above your head. Is that for fume extraction?

Question, i do recall my ZM1032 design perfer uses the stage between on/off as it is better to control an Nixie Tube, correct me if i am wrong. I think it is between to control to off segment by a flow voltage that come from the zener diode plus a resistor rather than just let the transistor handle all the blocking high voltage.

thx for you sharing you knowledge. It would be nice to show or build an power supply for this nixie tubes. And explain if it better to use stepdown or stepup supplies also to separate the low power site from the high power site of the circuit with one power supply. that would be nice :D

LED's will never beat the awesome orange glow of Nixies.

Amazing tutorial. Thank you so much! Is there some kind of transistor array I can use instead of individual ones? I'm building clock so I'll have 6 tubes in it, that's 81 transistors :)

Paul, if this were baseball you would be batting 1000. Great topic and another excellent video. I would certainly like to see the schematic for the Nixie driver unit. Thanks.

Those look like 1N16's. The digits look big, but that could be the camera angle. Nice looking tubes!