12afael

Re: Klark Teknik KT-2A Optical Compressor
« Reply #20 on: March 04, 2019, 05:50:50 AM »
CE require RoHS compliance. https://www.setra.com/blog/ce-rohs-compliance-what-you-need-to-know

Quote
As of July 22, the RoHS exemption for industrial monitoring and control instruments will end. Non- compliant product cannot be CE marked and sold in the European Union or to customers who otherwise require the CE mark.

In other words, the requirements for a CE mark (initially focused around radiated emissions) now include the requirements for RoHS compliance (concerning the content of lead, mercury, and cadmium). If a pressure transducer does not meet RoHS compliance, it will no longer meet the requirements for a CE declaration of conformity after July 22, 2017.
Quote

I heard that Electro harmonix paid 450000usd because of an FCC issue but i have not heard of anyone paying any fine because of CE problems.
heavy metal is the law!!!


abbey road d enfer

Re: Klark Teknik KT-2A Optical Compressor
« Reply #21 on: March 04, 2019, 05:58:53 AM »
CE require RoHS compliance.
It makes sense, which is not so usual regarding regulations.  ;D
Who's right or wrong is irrelevant. What matters is what's right or wrong.
Star ground is for electricians.

[silent:arts]

Re: Klark Teknik KT-2A Optical Compressor
« Reply #22 on: March 04, 2019, 06:27:53 AM »
I notice the T4B cell shown in the video of the DIY version has a CE mark on it. How does the supplier manage that considering it contains cadmium sulphide?
Just like Avalon, Chandler Limited , IGS Audio, Klark Teknik , Manley,  Warm Audio (all marketed or known as opto compressors, all available from Thomann in the EU).
They just don't care.

ruffrecords

Re: Klark Teknik KT-2A Optical Compressor
« Reply #23 on: March 04, 2019, 02:39:04 PM »
It's a long time I haven't been concerned with regulations, but isn't the presence of CdS an RoHS issue? Maybe CE is not concerned about it...
ROHS is necessary to apply the CE mark:

https://www.gov.uk/guidance/rohs-compliance-and-guidance

unless we are convinced that professional audio comes under the exempt heading of "non-road mobile machinery for professional use"

Cheers

Ian
www.customtubeconsoles.com
https://mark3vtm.blogspot.co.uk/
www.eztubemixer.blogspot.co.uk


'The only people not making mistakes are the people doing nothing'

Kingston

Re: Klark Teknik KT-2A Optical Compressor
« Reply #24 on: March 05, 2019, 06:19:04 PM »
I don't think the KT-2A is an exact copy of the circuit. But removing a tube and seeing what happened is fast and worked for me. ;-)

Besides the PSU and transformers its the same circuit.


 

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