Tesla Tube Factory Visit-Czech Republic 1998 

Tesla Vršovice was Factory from Prague. Your EL34 they are not from this factory. Tesla Vršovice produced just Radio Tubes for radars, High Frequencies amps... The EL34, EL84, ECC83, ECC82..... produced Tesla Rožnov, Tesla Třinec... in the Comunistic time until to 1989!! All these factories bancrupt. Now you can buy JJ electronics but it is made in Slovakia and It is new factory with new staf, different technology, machines... This video it is KR audio manufactured and they just use the rooms and house from old Tesla factory Vršovice.. In the same house also producing Emmision Labs triode tubes.

So beautiful isn't it

Yes, *glow-bottles.*

Becouse most are made by industrial robots. Those in film are just hand made which is very rare end may mean lower quality.

@Czorny Lisek - yet another baseless opinion.

The production of vacuum tube has always been a manual work, assisted by partial automation. Do you have a source that shows any kind of robot involved in the process?

this is KR audio manufacture. Also in the same house produce Emmision Labs triode tubes. The house in the video it is factory Tesla Vršovice but Tesla Vršovice produce radio tubes for high requencies and Tesla Vršovice move to the different city Říčany near to the Prague. This video doesnt have anything common with old NOS Tesla tubes from 1950-1989...

Messa boogie use factory production from Russia. It is very cheap tubes ...Its not hand made... On the video we can see high quality power triode tubes and hand made in Czech Republic

i feel you, bro. the sad part isnt the price for tubes, it's the price for throw away electroncs.. every valve is a masterfully handcrafted a piece of an arcane arts, controlling invisible forces, to do a man's bidding. 1-2k for a home hifi amp is a good deal, if it's built to outlast me, with proper maintenance and some repairs every few years.

Tubes are trash nowadays All the master craftsmanship and trade secrets and materials are gone

Tohle video by ještě v roce 2005 byl celkem kvalitní. :D

@@laszu7137 ano tehdy prostě nebyla elektronická stabilizace obrazu, ale to očividně dnes tuší lidé 30+ :D

Zlaté české ručičky? Spíš chudáci dělníci, že museli pracovat jak za cara Klacka. Ostatně ta první věta je výmluvná...

Joe Rico EAT ,(European Audio Technology), bought TESLA, moved it and makes those tubes marketed under EAT name

Analog Planet ok thanks. I was about to research it but you beat me to it.

Tesla was large comunistic concern. In every city was some Tesla factory. Like Tesla Vršovice from Prague in this video, Tesla Rožnov, Tesla Třinec, Tesla Pardubice. Every Tesla prodeuced different devices like tubes, resistors, capacitors, TV, Radio etc etc. On this video we just can see hand made manufature KR audio tubes. In same house also produce EAT or Emission Labs. After reveolution 1989 step by step every Tesla factory bunkrupt or bought some west company like exapmple Tesla Pardubice - they produced TV and the factory bought Panasonic....

@Empyreal No one had a 4K camera back then. also, I didn't ask for your opinion. Get lost.

It is not a matter of camera quality. The operator seems had never handled any camera of sort before, with sudden, unforeseeable panning and tilting of the camera - which in turn do induce motion sickness in the viewers, impairing any enjoyment of the footage.

this is KR audio manufacture. Also in the same house produce Emmision Labs triode tubes. The house in the video it is factory Tesla Vršovice but Tesla Vršovice produce radio tubes for high requencies and Tesla Vršovice move to the different city Říčany near to the Prague. This video doesnt have anything common with old NOS Tesla tubes from 1950-1989...

@@Analogserviscz So Tony and Riccardo were friends?

era piemontese, il nonno era venuto in italia dall'ungheria

its not anymore

+zark212 Not exactly the same but very similar and usable are the small spot welders used in dental labs, turn up on ebay all the time. You can build a resonable unit yourself as well from scrap parts, too.

Thank you Dercebe that's brilliant info. really appreciate it :)

You can also build one out of an microwave transformer (if you're still looking that is XD)

DrummingEvil Thank you for the info DrummingEVIL. Appreciate it. Its surprising no one has made a cheap version with microwave transformer for sale on the market, Its something I will definitely look into. Thank you :)

zark212 Indeed, and no problem ;)

Jan Jurco (JJ) bought the old equipment from the Tesla factory, but produces tubes of much lower quality-- which isn't to say they're "bad" per se, just not nearly as good as what Tesla made. The JJ ECC83, for example, bears a strong resemblance to the Tesla E83CC, which itself was an exact replica of a Telefunken ECC803S. The Tesla and Telefunken tubes used a frame grid-- which the JJ design lacks-- and lasted at least 10,000 hours (likely owing in large part to superior cathode materials). Of course, they were also quite expensive new, and not many were produced. Better to let the rich hifi nuts have the rare expensive old tubes though, you could get a lifetime supply of new tubes for the prices you'd pay for some old ones.

Have you tried the Chinese made tubes? What are your thoughts on those?

Hit and miss. When I tested the cheapo Shuguang 12ax7a against all my other tubes, it approximately matched the noise level of the Sovtek 12ax7lps-- the only one to beat it so far was the TJ Full Music 12ax7. All three were well below the noise level of JJ tubes. I also tried some short bottle 6L6 tubes from Shuguang, but they didn't fit in the socket easily-- I think they left too much solder on the pins. Also made a lot of noise on startup, which the JJs did not. I've heard others say that JJ's best tubes are their power tubes-- my experience so far seems to back that up. I still have yet to try anything from psvane, but I imagine those and shuguang treasure should be in the same ballpark as the TJ full music tube I did try-- easily better than most modern tubes, in other words, but at a higher price. I don't beat the crap out of my tubes though, so my primary concern is sound-- and in that regard, some Chinese tubes are great. Not all.

VolkOseba Oh wow. Thanks for such a detailed answer. I haven't heard about some of the tubes you mentioned, I'm also mostly only concerned with sound as well. I'll take a look. Cheers, thanks again.

We drink beer.

This is a factory. You wouldn't want to live in industrial Detroit or Jersey city either. Wanna see beauty go to Prague.

Czech Rep. Is the best country in Europe - Visit Carlovy Vary and you'll forget about tropics.

Especially if you have a bad cold. They have some elixirs made in Karlovy Vary that make NyQuil look to be *worthless,* supposedly.

music amplifiers. TRADE MARKS like COPLAND CTA-401 AND -405 BY EXAMPLE... CARY AUDIO, JADIS, ETC...

these tubes they are high end. Very expensive power triodes. In this house they produce KR audio, EAT and Emmission Labs tubes. You can buy example Emmission Labs in tha Jac music shop. Just ask the google KR Audio, EAT, Emmision Labs.....

It is probably mostly due to the costs of labor and environmental regulations in the US.

why.. because the market is rather small. It is highly cost-ineffective.. just look at the guys making new Nixies and they are by far not as problematic to made as many of the tubes shown in the video.. you need many expensive tools and equipment which have really not large life-span such as turbomolecular pumps, etc. Therefore inefficient making in small production. and obviously back in the time except for Tesla (Czech Republic), Russia, Japan, there was also another producers based on different countries. But the technology has been nearly replaced completely...

I dont think you can do it better... or at all ;)

great old times ;) no rush and healthy drinking at work..

@@CeroYoutubo keeps the hand shaking down ;-)

well he totally sounds italian

Trust me, this way of talking can be heard only here in motherland

@@BetamaxFlippy Riccardo Kron era piemontese (nonno ungherese) e ha creato lui KR Audio ed era lui nel video che faceva da guida

Yeah, One guy had a beer on his table, in the factory :O :D

not necessarily... the problem with this kind of product is that when a batch is made you can wait another 10 years to make others, that's why it's not remunerative at the end

You are idiot and you dont know absolutly nothing about hand made. You cant work fast with the glass and metall parts in this case! The tubes they have absolutly perfect parameters, long life and great sound. One pair of the tube cost example 1.000USD !!