Get a mercury vapor tube our of one of those cheap gimmicky phone sanitizers. They have several landmak emissions for calibration of spectrometers. A while ago i used to grab surplus honeywell air purifier tubes and combine them with ccft drivers out of old document scanners. They worked great. 🤓
Thanks for sharing this! HeNe laser on eBay are still over a 100 euros mostly. Do you by chance know anything about how the current luminous output power relates to the original specs?
I picked up 2 for under £30 listed as unknown condition, so it was a gamble. But both work. I have not measured the output, but from visual comparison, I expect it is around 5mW. He-Ne lasers age well, and will keep working for decades, especially the newer hard sealed tubes.
You do excellent work - a solemn presentation with a professional demeanor. I appreciate the serious content, without comedy and mockery towards anything that isn't new or representative of the latest technology.
Thanks! Nothing wrong with old tech to my mind, often it is better. Take diode lasers for example, they drift in frequency at around 0.25nm/degree C without temperature control. Gas lasers on the other hand are very stable, the beam quality is excellent and have known frequencies, so make good standards.
I have several of these He-Ne lasers (red and GREEN) but no ps. In the video, did you leave the internal ballast resistor inside (I think they are cylinderical)? Have you powered a green unit? THANKS MUCH!!!
I cant buy these capacitor from Romania.It could work without smoothing?My flyback is AC type.I tryed with many diodes and resistors and it work 5 seconds very well but after 5 seconds the diodes it burned.Maybe is fine to try with bigger diodes and bigger resistors?
You need to smooth the output. He-Ne's are unstable without it, and will significantly shorten tube life. Do they not have eBay in Romana? I had mine shipped from China! If not, you could always make a HV capacitor by series up large value lower voltage capacitors, as most Tesla coil builders are familiar with. Google: MMC or "Multi Mini Capacitor"
maybe i can do it with ceramic capacitors(10kv at 2,2nf)18 in paralel(equivalent aprox 0,04uf).the problem is the flyback have an output aprox 10-12kv. i can burn my capacitors with that tension.i can use a ballast resistor before capacitors to drop the voltage a little?
The design I am using is current limited to about 8mA for He-Ne lasers,, but ZVS drivers are capable of pushing hundreds of watts through a line output transformer. I'm not sure how long a standard monitor transformer would stand up to the punishment, but they are cheap, so give it a go! You can buy CO2 laser transformers pretty cheaply as well, and I am willing to bet you could drive one with a ZVS successfully.
Hi LES lab,s , can you help me, First off I want to say, I know very little about Electronics. But around 8 years ago I picked up a old Laser, I found out it was the first laser costing 1,525 dollars usd, The maker is Spectra-Physics 130 gas laser,, When I first Got it To be honest I pluged it in to see if it worked, And it did, Beautiful blueish purple light, I shut it off, I could never get it to light up again, I dont know what its worth, But would love to get it working again, What could I do, Thanks Brian
Put a 1k one watt resisror, across the millamp meter. Protects it, gives it a contances and meter will not overheat..and stops induction spike from the meter coil winding, wile starting, I've been doing that since 1968.
A GREAT help!
Thank you so much!
Get a mercury vapor tube our of one of those cheap gimmicky phone sanitizers. They have several landmak emissions for calibration of spectrometers. A while ago i used to grab surplus honeywell air purifier tubes and combine them with ccft drivers out of old document scanners. They worked great. 🤓
Thanks for sharing this! HeNe laser on eBay are still over a 100 euros mostly. Do you by chance know anything about how the current luminous output power relates to the original specs?
I picked up 2 for under £30 listed as unknown condition, so it was a gamble. But both work. I have not measured the output, but from visual comparison, I expect it is around 5mW. He-Ne lasers age well, and will keep working for decades, especially the newer hard sealed tubes.
You do excellent work - a solemn presentation with a professional demeanor. I appreciate the serious content, without comedy and mockery towards anything that isn't new or representative of the latest technology.
Thanks! Nothing wrong with old tech to my mind, often it is better. Take diode lasers for example, they drift in frequency at around 0.25nm/degree C without temperature control. Gas lasers on the other hand are very stable, the beam quality is excellent and have known frequencies, so make good standards.
I have several of these He-Ne lasers (red and GREEN) but no ps.
In the video, did you leave the internal ballast resistor inside (I think they are cylinderical)? Have you powered a green unit?
THANKS MUCH!!!
I cant buy these capacitor from Romania.It could work without smoothing?My flyback is AC type.I tryed with many diodes and resistors and it work 5 seconds very well but after 5 seconds the diodes it burned.Maybe is fine to try with bigger diodes and bigger resistors?
You need to smooth the output. He-Ne's are unstable without it, and will significantly shorten tube life.
Do they not have eBay in Romana? I had mine shipped from China!
If not, you could always make a HV capacitor by series up large value lower voltage capacitors, as most Tesla coil builders are familiar with. Google: MMC or "Multi Mini Capacitor"
Hi, great video,
where did you find that connector? Ebay?
Yep, eBay. They are pretty hard to come by though. there is not much to them, perhaps they can be made on the lathe.
maybe i can do it with ceramic capacitors(10kv at 2,2nf)18 in paralel(equivalent aprox 0,04uf).the problem is the flyback have an output aprox 10-12kv.
i can burn my capacitors with that tension.i can use a ballast resistor before capacitors to drop the voltage a little?
Great video. Is the power supply suitable for a CO2 laser tube? What current can it supply?
The design I am using is current limited to about 8mA for He-Ne lasers,, but ZVS drivers are capable of pushing hundreds of watts through a line output transformer. I'm not sure how long a standard monitor transformer would stand up to the punishment, but they are cheap, so give it a go! You can buy CO2 laser transformers pretty cheaply as well, and I am willing to bet you could drive one with a ZVS successfully.
your curent from the flyback is DC or DC in pulses?
DC. There is probably plenty of ripple, but I'm not putting my scope near it! The output is smoothed by the huge caps anyway.
so it will work with ceramic capacitors?
It might, but honestly, you would be better with polypropylene caps.
Hi LES lab,s , can you help me, First off I want to say, I know very little about Electronics. But around 8 years ago I picked up a old Laser, I found out it was the first laser costing 1,525 dollars usd, The maker is Spectra-Physics 130 gas laser,, When I first Got it To be honest I pluged it in to see if it worked, And it did, Beautiful blueish purple light, I shut it off, I could never get it to light up again, I dont know what its worth, But would love to get it working again, What could I do, Thanks Brian
Can you provide a link to buy laser tube?
I just find mine on eBay, just search for "He-Ne" "Helium Neon" etc etc. They turn up quite regularly.
@@LesLaboratory I did search, but can’t find it, If possible please send me a link
Нужно ли трубке время на прогревание или он сразу включается (мгновенно)?
Спасибо за субтитры на Русском!!!
У вас интересный канал.
Подписался!)
Немедленно.
Спасибо!
Put a 1k one watt resisror, across the millamp meter. Protects it, gives it a contances and meter will not overheat..and stops induction spike from the meter coil winding, wile starting, I've been doing that since 1968.