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Old 21st June 2012, 10:01 AM   #21
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Remember to use a transformer that'll work with 50Hz. Don't want any overheating and growling from it.
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Old 21st June 2012, 05:32 PM   #22
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Originally Posted by monty78pig View Post
Remember to use a transformer that'll work with 50Hz. Don't want any overheating and growling from it.
Since it is mainly for EU, it will ! A toroid nonetheless!
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Old 22nd June 2012, 09:52 AM   #23
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Nice. Where can I buy this amp?
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Old 23rd June 2012, 08:57 PM   #24
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Nice. Where can I buy this amp?

ditto
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Old 23rd June 2012, 09:21 PM   #25
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I'm sure you can compete with Chinese kits if your designs make sense, like low gain for line stages, proper phonos with something else than ECC83 everyone uses for kits, etc. Use good EU components, ok maybe Chinese sockets and cases you can paint here.
One very important thing is to write in good English, this is where Chinese fail. Also, shipping from Europe is cheaper and faster, people also seem to have more trust in kits from Europe...
I would use 230V transformers, i don't see a problem here as it is diy. Another thing is that you might offer pcb and p2p versions with little extra effort.

Good luck!
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Old 23rd June 2012, 09:50 PM   #26
Merlinb is offline Merlinb  United Kingdom
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Originally Posted by GlowSignal View Post
One very important thing is to write in good English,
Further to this, there are some distinct differences in the symbols used by the Germanic countries when discussing electronics. For example, most of Europe uses 'V' for voltage (makes sense!), whereas the Germanic nations still seem to want to use 'U'... Some continentals also like to use a comma rather than a dot for a decimal point, which is also delightfully distracting.
You might consider writing an alternative set of instructions for these more backward peoples.

Last edited by Merlinb; 23rd June 2012 at 09:52 PM.
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Old 23rd June 2012, 11:03 PM   #27
AuroraB is offline AuroraB  Norway
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I do recall he said EU market...... as most of EU uses the comma for decimals, I just keep wondering who is the "backwards"...
BTW - use millimeters in your mechanical measurements- not inches, which is truly backwards......
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Old 24th June 2012, 01:43 PM   #28
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I have a bright idea: when writing in English use English technical conventions; when writing in German use German conventions etc. That way everyone is happy, apart from the maker who has to pay for a full translation into proper technical German/French etc. If possible the translator should be a native speaker of the target language, not the source language. Just remember that in the EU any English should be British English. A separate translation can be done for the US market!
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Old 24th June 2012, 03:04 PM   #29
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I do recall he said EU market...... as most of EU uses the comma for decimals
That's a royal PITA if you ask me. I once accidentally bid 5500$ (=5,500$) for a 12GN7 on ebay.com just because they use two different punctuations to keep orders of magnitude apart.

the point/comma is also very annoying when using multiple programs which handle those differently like Mathematica, Maple, Altium, Splan, Eagle, PSUD2, LTSpice etc. I always check component values at the end....

Units of measurement...well...I simply try not to buy stuff which is nonmetric. US muscle cars are great but I won't buy all my wrenches again as SAE version just like screws and threading tools etc.
Let's hope one day this will become real: Metrication in the United States - Wikipedia, the free encyclopedia
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Old 24th June 2012, 10:01 PM   #30
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Yeah keep everything metric, no one in the EU uses imperial measurements. That means preferably keeping all the parts and layout/drill holes metric while designing the amplifier, not just converting to metric when you are finished.
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