Transformer Question

On Sun, 5 Feb 2017 11:07:28 -0800 (PST), Lasse Langwadt Christensen
<langwadt@fonz.dk> wrote:

>Den s&#4294967295;ndag den 5. februar 2017 kl. 19.54.10 UTC+1 skrev John Larkin:
>> On Sun, 05 Feb 2017 19:28:19 +0100, Jeroen Belleman
>> <jeroen@nospam.please> wrote:
>> 
>> >On 05/02/17 16:48, John Larkin wrote:
>> >
>> >> Transformers, absent thermal overload or soaking in salt water, are
>> >> amazingly reliable. Using a dual-primary tranny as an isolation
>> >> transformer will be no less reliable.
>> >> [..]
>> >
>> >I wish! I'd *expect* transformers to be amazingly reliable, but in
>> >my experience they aren't, even under moderately light loads.
>> >
>> >Jeroen Belleman
>> 
>> I've used thousands of 120:240 power transformers, and none have
>> failed in the field from defects of design or construction. We did
>> have one toroid that ran into saturation, and got hot, at maximum line
>> voltage and 50 Hz, at a UL test lab. The manufacturer had to modify
>> the design; I think they changed the core material.
>> 
>> There are no doubt cheap, nasty transformers around; don't buy
>> transformers from chop shops.
>> 
>
>http://s240.photobucket.com/user/inspector72/media/funny%20stuff/thirdworldarcwelder3.jpg.html

Is that a CE sticker that I see on the side?


-- 

John Larkin         Highland Technology, Inc
picosecond timing   precision measurement 

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com