• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Tubes and RoHS compliance?

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Hi,

RoHs maybe doesn't have that big impact on tube based electronics.

There is a list of exemptions under which you can still use hasardous materials under certain conditions.

"RoHS Directive (2002/95/EC)

These original exemptions were published within the annex to RoHS on 27 January 2003. These exemptions are currently in force."

One important part of the excemption list:

"5. Lead in glass of cathode ray tubes, electronic components and fluorescent tubes."

Which means that it is OK to continue using tubes and tube sockets and other components that contain lead but you need to use lead free solder.

Ther are other exemptions in force for other substances but lead is probably what can cause most possible problems

Regards Hans

PS, check this web site which contain a lot of information about the RoHS directive http://www.pb-free.info/laymans_terms.htm
DS
 
Which means that it is OK to continue using tubes and tube sockets and other components that contain lead but you need to use lead free solder.

The exemption for the envelopes and sockets is good news. Pb free solder is BAD news. Master European organ builders knew about alloying Sn with Pb to avoid Blechkrankheit, AKA Tin Disease. Tin crumbles at low temperatures, like those of an unheated church. Making a eutectic alloy from Tin and something other than Lead with a reasonably low melting point is a PITA.

Effing bureaucrats, engage brain before opening mouth. The 2 major sources of environmental Lead are old paint and automotive storage batteries. Heck, old Lead cold water pipes from the 19th century don't poison people.
 
Dang you Chris,

You got me laughing so hard I'm almost having a heart attack or something...

Ya know some knuckle head said, "the world can do without lead based solder"... that same dude probably didn't own an iron, a shop, a start-up comany, a prototyping firm, and he probably wasn't a consultant makin' a decent buck working from home on a "net" assembled with lead.

You can't throw a plastic bottle in "the trash" anymore. Who thinks we'd get all sideways about recycling electronics... I don't get it. i am OK with recycling... I DO IT!

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Seriously, guys, NOS tin-lead and tin-lead-silver will be a very high price item in not so many years, prized by the audiophile seeking the authentic Golden Age of High End sound. I'm laying in a stock to pay my kid's way through Harvard; I figure 10 years ought to do it.
 
My favourite part is the RHoS compliance exemption for defence aviation and aerospace sighting for reliability reasons likely a good call but what does that mean for equipment manufactured using "lead free" technologies? more shoddy then currently available and more expensive to boot. This gives rise to the fact that the consumer shall pay and pay and pay.
 
I've googled some more, and it looks like you might build stuff with tubes in it, on the premisse that you have to take back the old tubes and assure a good way of handling the dumping of these. You also have to have the facilities to take back complete products which are at the end of their lifespan. In order that people don't have to travel all over the country back to the original shop (if it still exists), people may also return their old equipment at a shop in their neighbourhood.

For us, that's a nice scheme; the only difficulty is 'how do you dump an old, broken mercury-filled tube without getting broke'.
 
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