You break this stuff down so well I actually begin to believe I can grasp it at times. Very encouraging! Yes please to HV supply series. Yes please to oven circuits. Thank you.
The "Digital Dial" is definitely my next project! For a long time, I was not convinced that it was within my skill level being discrete logic, but the way you explain it all makes it very easy to understand! Excellent work as always!
Hi Mr. Carlson! This is the first time I've written but I've been watching your videos for a while now. I always give thumbs up. Would love a series on high voltage. Thanks a million for what you do!
I most certainly would appreciate a video on designing high voltage supply for this project per your comment in the video. I would also be interested to see you discuss constant current sources (sources, sinks, etc.). Thanks!
I too would be interested in the HV supply video. The heated oscillator video would be interesting too, but I'd rather see the project reach functionality first, and then have additional videos on improvements.
Wow Paul, this is great. And I am sure I am not alone when I say It would be great to learn how you build a high voltage supply. Thanks as always. Carl
By far the best educator on youtube, the time you take to produce these gems is very much appreciated. Please keep them coming. kind regards from Scotland.
WOW!!! 😯👍 Finally! Someone Who Not Only Builds Electronic Circuits. Yet,... Whom Also Teaches Others, How To Build The Same Exact Circuit In Great Detail!... SO! VERY! AWESOME! 😉👍 Blessings New Subscriber: James Harris... Thank You Paul! 🤗
Awesome idea Mr Carlson, step up transformer theory for old car radios is a fascinating subject. Really enjoyed the repair video on that Ford radio, old car radios are built like tanks and have very sensitive receivers. Thanks and keep up the great work, you are a fine engineer & educator.
Very informative video as always. My appetite for learning electronics keeps growing with each of your videos that I watch! I would love to see a series on high voltage supplys too. Looking forward to the next instalment 👍
Paul, Another Mighty fine video... Looking forward to the HV switcher video... Ya make my day with these videos for an old retired engineer. So much so ya have sparked me up to refurb my lab with HP test equipment and get super active! Many Thanks !!! Lloyd-DigiTek-WA9NLA
@4:32 Definitely nice to see a nixie power supply design. There seem to be many variants of designs on the internet so some ideas around why a particular design works would be very interesting
So nice to hear that you wanna make a series in high voltage power supplies. I'm interested in nixie tubes in combination with arduino / raspi. Its so hard to find a (simple and easy) stepup from 5V or even 3V to (more than) 190 V. Thumbs up to your Videos and sharing your knowledge with us!
Another great video! Great instruction style. I always get excited when there's a new video out from Mr. C's Lab! Thanks so much for sharing. And yes, I would love to see some HV power supply vids...
Hi there Mr Carlson, Long time first time... I actually enjoy your videos a lot, even though I'm a vacuum tube guy. I for one would be very interested in those high voltage power supplies. Thanks for sharing the good stuff, Dennis G.
Sir you have a natural aptitude for teaching! I very much enjoy your videos. I would love to see something from you on OCXO's. A bonus would be how to control it with a GPS to make a 10 MHz GPSDO to use as a test equipment reference.
Paul, please do make videos about oscillators & high-voltage power supplies. Also, I'd always wondered where multivibrators got their name, but assumed the name was from much earlier technology. Could you do a video on (multi)vibrators? Especially if you have access to one of the original mechanical vibrators?
Always enjoy your videos, Paul! Last weekend I got two kewl Hewlett Packard pieces really cheap because they weren't working. A hp 711A which is a 500 volt 100 ma bench supply that I have wanted for a long time because it is small and will fit under the "monitor bridge" on my bench. (I also have a Fluke 407 which is an excellent p/s 550v @ 300 mils but a brute! I used to have a Lambda 71 like yours, also a brute, but it got grossly damaged in shipping and it had a lot of hard to source parts in it so I junked it.) The hp 711A was a great big $5. While I was at the seller's place he brought out a hp 521 which is a 4-place decade counter with the 4 x 12AU7 (5963) tube plug in decades. Always wanted one of those, for no good reason, but for $10 I didn't have to think about it very hard. So I get them home and gradually variac them up...and after a few hours of ramping up the line volts, they sort of worked, sort of didn't. Power supply only went up to 270, counter was frozen. So I opened them up. I remembered in another video you pointed out bumble-bee tubular caps as "always suspect". Each item had (only) 2-3-4 of those and after lifting one end, half of them in fact measured leaky. I shotgun replaced them all and both pieces began working fine, needing only minor adjustment. Power supply now makes 530, counter self-tests good. I will cook them for a while before pronouncing them fixed, but the before/after difference was quite obvious just from those caps. So that was great advice on those bumblebees and I thank you!
Yes please Paul for the HT supplies, especially if you can pull up something on the old automotive units that would be fantastic. My declared interest here is generating ringing current for old polarised bells in telephone instruments, and some small exchanges did deploy vibrating reeds feeding into a step up transformer. Excellent videos as usual. Many thanks for your continued efforts. Saludos.
I agree. The content is a de-stresser extraordinaire. Magic. I never thought EE content could be so relaxing and yet powerfully informative. I probably sound like a broken record by now, but you’re doing an absurdly good job with these videos, Mr. C. It’s a good decade above lots of other good YT stuff on the scale.
I would be extremely interested in the HV supply videos! Thanks very much for sharing your incredible amount of knowledge! Really technical videos on valve technology is extremely difficult to find.
I want to see more Paul! This is an awesome series and I'm starting to learn a lot more than I already knew about frequency counters!! May try and make my own version following your series since I have a ton of 74 series logic chips laying around!
Hi, I'm studying electronics in college and I've become intrigued by watching this video because of the more than adequate explanation and breakdown. I'm trying to make this oscillator circuit in Altium Designer and in Multisim, but I'm struggling to find the 74HC930 component schematic symbols (and symbols for non-inverting buffers) in these programs. Any people who are familiar with using these components in NI Multisim and/or Alitum Designer? I'd be very happy to experiment further with this schematic and to try and make a PCB design out of it. Thanks a lot in advance! :)
The CD4017's I've got are VERY sensitive to supply voltage. I had to fool with the input to pin 14. It seems to like a 100k resistor in series with the pulsed 5 volt output from my Arduino made it happiest. It also seemed a little squirly with the output from my Wavetek function generator from the late 60's, although it behaved fine when I got the correct output from that. Too much OR too little voltage on pin 14 and it won't count. Experimenting on a solder-less bread board is a must. A nice CURRENT LIMITED power supply is definitely recommended. 20 mA was plenty for a single CD4017 and 10 leds. Also, Arduino's are NOT short circuit protected on their output pins that I can find, so be mindful of that. What a fun project!
Please make video's on all the topics you mentioned. At beast I learn something new, at the vesy least I always better understand what the video's about. Thank you.
Another good video! Please do the other videos as you suggest. I'm interested in temperature controlled oscillators for a local/UTC clock for the ham shack. Thanks and keep up the good work.
I'd love to see the power supply video! One that could be powered up from a 9V batt or a wall wart 12V supply and put out about 200V. My project in particular, would be a magic eye tube VU meter! Absolutely great video BTW, you provide such good information here!
Gosh with that kind of accuracy on a breadboard I may have to abandon my GPSDO and Rubidium standards that feed the radio and test benches! ;-) Seriously, nice job as usual Paul, I vote for a piece on temp controlled oscillators. 73 - Dino KL0S
One thing I have not seen, what wattage resistors is used and yes I would like to see a series about high voltage power supplies I would also like to know where you buy high voltage electrolytic capacitors ,as I need to replace all in my guitar amplifier
I've been looking forward to this video, make more of them faster!! heh. Having made a few counters for % displays for PWM controllers, I have to say that using an Attiny for pulses to control the driver chip is my preferred method... Anyhow.. great video, I am looking forward to seeing more on this series.
WOuld love some vids on HV supply's. I always wondered why RF Tube amps never put out solid power.. always huge voltage sags, resulting in RP power drops. Makes for a headache for a CW op. Love the vids.. sub'd and watch often!
Mr Carlson sir A high voltage video would be brilliant,please could you include a lab psu, as that would be cool because to buy one is very expensive thank you for your video's ,like Buddy's and BBI they are always good to watch thank you once again !!
Hello Paul. I'm in OZ so our mains frequency is 50hz. I thought it might be useful if you explain to your viewers how to take feed off the mains hum to use in a simple frequency counter. It is usually quite accurate, saves some division ICs and construction.
A variable capacitor can shift the frequency of a crystal (too a small degree.) This is taken into account when the crystals are made, so you can fine tune them in their intended circuit.
Thanks for another clear and fun video. I love watching for the content, but the production quality is also really noteworthy. What camera do you use to film?
Hi Paul, yes oscillators videos, like ocxo or gpsdo should be a good idea. I bought 2 ocxo 10mhz on ebay. 12v sine wave and 5v sqare wave. I want to make a 10Mhz accurate reference for my lab. I'm planning make a GPS disciplined oscillator (gpsdo). Very useful to calibrate my used frequency counter, for my nixie clock projet and more. This is a must. I bought a GPS module neo m8n too. I found many schematic on internet using pll and 74HC390. Problem is, i dont find a good one with a clean output. From what I've seen, frequency looks good but on oscilloscope, a lot of jitter and harmonic. So if you have advice or link or maybe make a video :) Anyway i'll do some test by myself but i'm sure that a GPS disciplined oscillator made by Mr carlson should be awesome :) I'm just doing a proposal here. Good weekend and thanks again for your video
Very nice chapter, I am following all the steps... I also would love to see the high voltage power supply. Could I simply use my 110v mains rectified by diodes and capacitors?
It's how it has been done in bench intruments in the Nixie age, but usually with a transformer to isolate it from the mains. You really only need a half-wave rectifier, they will work at anything resembling DC.
Hi Paul; I am wondering why You are using the Cmos versions of Your various chips.. I have very little Cmos Ic's, I mostly have 74xx (plain), 74LSxx, 74Sxx, and 74Fxx, and of course I also have some of the older and rarer 74Lxx and 74Hxx.. I do a fair amount of Wire-wrapping, and I use mostly 74LSxx, and 74Fxx and plain 74xx.. Anyway keep up the good work, I stumbled upon Your site about a month ago.. THANK YOU Marty
Really nice videos, thank you very much. Maybe you can explain why the crystal oscillates and why there has to be a buffer stage? Is this setup more accurate than a 1307 clock with a watch crystal?
Hi you videos are great and your a fantastic teacher. Just wondering how you know how to set up 74HC390 to divide by your desired value. is there a formula to use? thanks
Thanks for the knowledge. Your teaching approach is out of this world.
PLEASE DO THE HIGH VOLTAGE POWER SUPPLY VIDEOS!
Totally agree! Please Please Please!!!
Double DITTO to the above!
I'd be keen for the HV supply stuff
Totally agree!
Another vote for HV!
Mr Carlson, I must confess that I always hit thumbs up on your videos at the beginning. You have never let me down. Your videos are priceless
Thanks Todd!
You break this stuff down so well I actually begin to believe I can grasp it at times. Very encouraging! Yes please to HV supply series. Yes please to oven circuits. Thank you.
Paul,
You are a gifted teacher. You seem to anticipate my every question and answer it.
I understand almost everything you teach.
Thank you.
Thanks Ian, glad your enjoying!
The "Digital Dial" is definitely my next project! For a long time, I was not convinced that it was within my skill level being discrete logic, but the way you explain it all makes it very easy to understand! Excellent work as always!
Hi Mr. Carlson! This is the first time I've written but I've been watching your videos for a while now. I always give thumbs up. Would love a series on high voltage. Thanks a million for what you do!
Impossible not to see your videos!
Thanks Paul, for sharing so many knowledge.
All the best
Victor
Thanks Victor!
The timer IC 555, originally developed from the Swiss Hans Camenzind. Simply but effectively demonstrates, thank you so much!
The high voltage design/construction series would be great! I really enjoy learning from your excellent videos.
Nice explanation. You show us a huge knowledge in simple words!
I most certainly would appreciate a video on designing high voltage supply for this project per your comment in the video. I would also be interested to see you discuss constant current sources (sources, sinks, etc.). Thanks!
I too would be interested in the HV supply video. The heated oscillator video would be interesting too, but I'd rather see the project reach functionality first, and then have additional videos on improvements.
I love the way your videos are broken down and well explained as well interested in the mechanical rectifier
Yes a video series on oven controlled oscillator design would be awesome!
Wow Paul, this is great. And I am sure I am not alone when I say It would be great to learn how you build a high voltage supply.
Thanks as always.
Carl
By far the best educator on youtube, the time you take to produce these gems is very much appreciated. Please keep them coming.
kind regards from Scotland.
Glad your enjoying! Thanks!
Hi Paul!
Thanks for the wonderful presentation as always! I'd be 'highly' interested in a high voltage power supply series!
Cheers!
WOW!!! 😯👍
Finally! Someone Who Not Only Builds Electronic Circuits. Yet,... Whom Also Teaches Others, How To Build The Same Exact Circuit In Great Detail!...
SO! VERY! AWESOME! 😉👍
Blessings New Subscriber:
James Harris...
Thank You Paul! 🤗
Thanks for your kind comment James, and welcome aboard!
Awesome idea Mr Carlson, step up transformer theory for old car radios is a fascinating subject. Really enjoyed the repair video on that Ford radio, old car radios are built like tanks and have very sensitive receivers. Thanks and keep up the great work, you are a fine engineer & educator.
Very informative video as always. My appetite for learning electronics keeps growing with each of your videos that I watch! I would love to see a series on high voltage supplys too. Looking forward to the next instalment 👍
Paul, Another Mighty fine video... Looking forward to the HV switcher video... Ya make my day with these videos for an old retired engineer. So much so ya have sparked me up to refurb my lab with HP test equipment and get super active! Many Thanks !!! Lloyd-DigiTek-WA9NLA
Great stuff Paul; you're a wonderful teacher. Many thanks. Please add my vote for the HV PSU and OCXO videos.
Thanks!
@4:32 Definitely nice to see a nixie power supply design. There seem to be many variants of designs on the internet so some ideas around why a particular design works would be very interesting
So nice to hear that you wanna make a series in high voltage power supplies. I'm interested in nixie tubes in combination with arduino / raspi. Its so hard to find a (simple and easy) stepup from 5V or even 3V to (more than) 190 V. Thumbs up to your Videos and sharing your knowledge with us!
Another great video! Great instruction style. I always get excited when there's a new video out from Mr. C's Lab! Thanks so much for sharing. And yes, I would love to see some HV power supply vids...
Glad your enjoying!
Hi there Mr Carlson,
Long time first time... I actually enjoy your videos a lot, even though I'm a vacuum tube guy. I for one would be very interested in those high voltage power supplies.
Thanks for sharing the good stuff,
Dennis G.
Thanks for sharing. Nice tip about centering the trimmer cap for future drift.
Sir you have a natural aptitude for teaching! I very much enjoy your videos. I would love to see something from you on OCXO's. A bonus would be how to control it with a GPS to make a 10 MHz GPSDO to use as a test equipment reference.
Thanks Roy!
I will gladly follow your build of an frequency counter!
Paul, please do make videos about oscillators & high-voltage power supplies. Also, I'd always wondered where multivibrators got their name, but assumed the name was from much earlier technology. Could you do a video on (multi)vibrators? Especially if you have access to one of the original mechanical vibrators?
Thanks for your input Bob!
Always enjoy your videos, Paul! Last weekend I got two kewl Hewlett Packard pieces really cheap because they weren't working. A hp 711A which is a 500 volt 100 ma bench supply that I have wanted for a long time because it is small and will fit under the "monitor bridge" on my bench. (I also have a Fluke 407 which is an excellent p/s 550v @ 300 mils but a brute! I used to have a Lambda 71 like yours, also a brute, but it got grossly damaged in shipping and it had a lot of hard to source parts in it so I junked it.) The hp 711A was a great big $5. While I was at the seller's place he brought out a hp 521 which is a 4-place decade counter with the 4 x 12AU7 (5963) tube plug in decades. Always wanted one of those, for no good reason, but for $10 I didn't have to think about it very hard.
So I get them home and gradually variac them up...and after a few hours of ramping up the line volts, they sort of worked, sort of didn't. Power supply only went up to 270, counter was frozen. So I opened them up. I remembered in another video you pointed out bumble-bee tubular caps as "always suspect". Each item had (only) 2-3-4 of those and after lifting one end, half of them in fact measured leaky. I shotgun replaced them all and both pieces began working fine, needing only minor adjustment. Power supply now makes 530, counter self-tests good. I will cook them for a while before pronouncing them fixed, but the before/after difference was quite obvious just from those caps.
So that was great advice on those bumblebees and I thank you!
Glad you got that equipment working. You have some nice older stuff there!
Yes please Paul for the HT supplies, especially if you can pull up something on the old automotive units that would be fantastic. My declared interest here is generating ringing current for old polarised bells in telephone instruments, and some small exchanges did deploy vibrating reeds feeding into a step up transformer. Excellent videos as usual. Many thanks for your continued efforts. Saludos.
Hi Paul, Very nice video as always from you I like your clear way of explaining things.
THanksaT
Great video Paul! I would be interested in seeing the HV supplies.
Very high quality content as usual. I need a hv power supply because I've bought a load of nixie tubes now! Thanks for all your stuff.
hi paul, honestly your videos becomes a some kind of curative medicine these days. Thanks man for your labor.
Glad your enjoying! Thanks for your comment.
I agree. The content is a de-stresser extraordinaire. Magic. I never thought EE content could be so relaxing and yet powerfully informative. I probably sound like a broken record by now, but you’re doing an absurdly good job with these videos, Mr. C. It’s a good decade above lots of other good YT stuff on the scale.
Strange days indeed! Said John Lennon;)
ovenised? yes please Paul. Thank you for this frequency counter series, brilliant. .................Berni
Great video Paul!
Thanks mr Carlson I'm keen on the high voltage power supply as well
Really enjoyed this video, thanks. More please.
Excellent instructional video. Just what I needed to design my custom oscillator. Thanks much.
Paul you are the Gold Standard 😁
Thanks Bob!
Paul, love to see your design around a crystal oven and what components you have selected to make it and why you selected those components.
I would be extremely interested in the HV supply videos! Thanks very much for sharing your incredible amount of knowledge! Really technical videos on valve technology is extremely difficult to find.
Glad to share Nathan :^)
Great video, as expected. Love the frequency standards subject!!
Excellent way of teaching with passion, Thank you very much for your time and efforts.....
Awesome video! It would be very interesting to see the ovenized oscillator built. Thanks a lot!
I want to see more Paul! This is an awesome series and I'm starting to learn a lot more than I already knew about frequency counters!! May try and make my own version following your series since I have a ton of 74 series logic chips laying around!
Another excellent video - looking forward to the next one !!!
Great video, Paul. I am on board for this project. Thanks!
Hi, I'm studying electronics in college and I've become intrigued by watching this video because of the more than adequate explanation and breakdown. I'm trying to make this oscillator circuit in Altium Designer and in Multisim, but I'm struggling to find the 74HC930 component schematic symbols (and symbols for non-inverting buffers) in these programs. Any people who are familiar with using these components in NI Multisim and/or Alitum Designer? I'd be very happy to experiment further with this schematic and to try and make a PCB design out of it. Thanks a lot in advance! :)
I would be interested in high voltage supplies. I also enjoy your videos.
I wish I could have given you 2 thumbs up mate, thanks!
I love this channel. Great work and thanks!
High voltage supply and extremely stable oscillators. I would watch both of those videos. If you make it, we'll watch it. ;)
Hi - Please count me as one of the viewers that would like lesson in high voltage supplies.... Tnx as always. Great videos.
The CD4017's I've got are VERY sensitive to supply voltage. I had to fool with the input to pin 14. It seems to like a 100k resistor in series with the pulsed 5 volt output from my Arduino made it happiest. It also seemed a little squirly with the output from my Wavetek function generator from the late 60's, although it behaved fine when I got the correct output from that. Too much OR too little voltage on pin 14 and it won't count. Experimenting on a solder-less bread board is a must. A nice CURRENT LIMITED power supply is definitely recommended. 20 mA was plenty for a single CD4017 and 10 leds. Also, Arduino's are NOT short circuit protected on their output pins that I can find, so be mindful of that. What a fun project!
Enjoyed again a great video from you and I hope to see soon a diy OCX :)
Very good explanation, thank you.
I SO look forward to your videos, Paul. Lawns go uncut....weeds grow until I watch them :-)
Glad your enjoying the video's!
Please make video's on all the topics you mentioned. At beast I learn something new, at the vesy least I always better understand what the video's about. Thank you.
Thanks for your input!
Another good video! Please do the other videos as you suggest. I'm interested in temperature controlled oscillators for a local/UTC clock for the ham shack. Thanks and keep up the good work.
I would-be interested in the high voltage supply series. Though i would need it for 230v mains aswell. (EU)
I'd love to see the power supply video! One that could be powered up from a 9V batt or a wall wart 12V supply and put out about 200V. My project in particular, would be a magic eye tube VU meter! Absolutely great video BTW, you provide such good information here!
love the channel. Lets do the HIGH VOLTAGE supply. that sounds fun.
I'd be very interested in seeing the HV supplies. I'm already dealing with 400v to 1000v with geiger tubes.
I would love to see a video on OC oscillators, and high voltage power supplies!
Gosh with that kind of accuracy on a breadboard I may have to abandon my GPSDO and Rubidium standards that feed the radio and test benches! ;-) Seriously, nice job as usual Paul, I vote for a piece on temp controlled oscillators. 73 - Dino KL0S
vveryy interrested in the thing you were talking about at 4.30. the future videos yoi were thinking about.
One thing I have not seen, what wattage resistors is used
and yes I would like to see a series about high voltage power supplies
I would also like to know where you buy high voltage electrolytic capacitors ,as I need to replace all in my guitar amplifier
i love your videos... just great and amazing how you explain electronics and your how to and repair videos... thumbs up 👍👍 keep doing this greets
Thanks Bernd!
Looking forward to the HV PS and the heater controlled OSC.
I'd definitely be interested in hearing about high voltage supplies.
Good Man!, Really enjoy your vids and always look forward to them.
Kind regards from New Zealand.
ZL2CIT
Thanks!
Lots of great knowledge here.Thanks!
You should do a video on nixie tube power supplies.
I've been looking forward to this video, make more of them faster!! heh. Having made a few counters for % displays for PWM controllers, I have to say that using an Attiny for pulses to control the driver chip is my preferred method... Anyhow.. great video, I am looking forward to seeing more on this series.
WOuld love some vids on HV supply's. I always wondered why RF Tube amps never put out solid power.. always huge voltage sags, resulting in RP power drops. Makes for a headache for a CW op. Love the vids.. sub'd and watch often!
Thank you for the great educational videos..
My dude. Most awesome.
Amazing class,
Tnx for sharing
73
Loving the videos, Big thumbs up.
Awesome tutorials, sir can you discuss about ESR meters specially the analog ones and pls disect every stages on how it works tnx
You probably could use a boost converter to get the high voltage, and as always thumbs up :)
High voltage please! There is not much high voltage stuff on youtube well explained
Have you compiled a list of frequencies for different crystals?
Mr Carlson sir
A high voltage video would be brilliant,please could you include a lab psu, as that would be cool because to buy one is very expensive
thank you for your video's ,like Buddy's and BBI they are always good to watch
thank you once again !!
Thank you very much for fulfilling my request.
No Problem, glad your enjoying the series.
Hello Paul. I'm in OZ so our mains frequency is 50hz. I thought it might be useful if you explain to your viewers how to take feed off the mains hum to use in a simple frequency counter. It is usually quite accurate, saves some division ICs and construction.
Thanks for your input Gary!
Nice video, thanks for teaching. I got a quesiton: do these load capaitors affect the resonant freqency of the crystal?
A variable capacitor can shift the frequency of a crystal (too a small degree.) This is taken into account when the crystals are made, so you can fine tune them in their intended circuit.
Your lab looks like inside the ISS, awesome. Do you have solar array outside your lab as well ?
Thanks for another clear and fun video. I love watching for the content, but the production quality is also really noteworthy. What camera do you use to film?
Like to see everything your doing, my first project was going to be a 10mhz ocxo but I kind of set it aside.
Hi Paul, yes oscillators videos, like ocxo or gpsdo should be a good idea. I bought 2 ocxo 10mhz on ebay. 12v sine wave and 5v sqare wave. I want to make a 10Mhz accurate reference for my lab. I'm planning make a GPS disciplined oscillator (gpsdo). Very useful to calibrate my used frequency counter, for my nixie clock projet and more. This is a must. I bought a GPS module neo m8n too. I found many schematic on internet using pll and 74HC390. Problem is, i dont find a good one with a clean output. From what I've seen, frequency looks good but on oscilloscope, a lot of jitter and harmonic. So if you have advice or link or maybe make a video :) Anyway i'll do some test by myself but i'm sure that a GPS disciplined oscillator made by Mr carlson should be awesome :) I'm just doing a proposal here. Good weekend and thanks again for your video
high voltage SCR supplies like the HP6266B or similar would be great
Very nice chapter, I am following all the steps... I also would love to see the high voltage power supply. Could I simply use my 110v mains rectified by diodes and capacitors?
It's how it has been done in bench intruments in the Nixie age, but usually with a transformer to isolate it from the mains. You really only need a half-wave rectifier, they will work at anything resembling DC.
Thanks for the tip, I bought 6 Nixies and I am trying to build a clock! Appreciated it..
working on that same, and i know i will learn so much
+Jakob vejle jensen That is awesome...
Hi Paul;
I am wondering why You are using the Cmos versions of Your various chips..
I have very little Cmos Ic's, I mostly have 74xx (plain), 74LSxx, 74Sxx, and 74Fxx, and of course I also have some of the older and rarer 74Lxx and 74Hxx..
I do a fair amount of Wire-wrapping, and I use mostly 74LSxx, and 74Fxx and plain 74xx..
Anyway keep up the good work, I stumbled upon Your site about a month ago..
THANK YOU Marty
Really nice videos, thank you very much.
Maybe you can explain why the crystal oscillates and why there has to be a buffer stage?
Is this setup more accurate than a 1307 clock with a watch crystal?
Interesting when you pulled the cap initially what happens to the tube.
It does not go dark.
Hi you videos are great and your a fantastic teacher. Just wondering how you know how to set up 74HC390 to divide by your desired value. is there a formula to use? thanks