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Mose has arrived
2017-07-22, 00:12 (This post was last modified: 2017-07-22 00:15 by LD100.)
Post: #11
RE: Mose has arrived
(2017-07-21 23:29)Ant_61 Wrote:  
(2017-07-21 22:53)AmericanEars Wrote:  
(2017-07-21 11:44)Ant_61 Wrote:  Anyone else spotted the misprint on the enclosure ?
Nope. Do tell.
117 as opposed to 110

I'm not sure if there will be a recall notice put out, there seems to be a lot of leeway regarding voltage specs.

I just looked at the last two electrical items I purchased and they both had 100-240 V printed on them.

Here in Chicago we get rock steady 60 Hertz, but the voltage varies from 116 to 127 depending on the time of day...higher at night when the factories and stores are shut down.
Not to mention the load difference due to air conditioning in the summer. We usually call it 120 volts, a nice even number.

Maybe the guy who made it 117 never saw the inside?Big GrinBig GrinBig Grin

Original 1978 Fluted Afromosia LP12, Ekos 2, Lyra Kleos SL and lots of other stuff from the 70's that still work fine.
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2017-07-22, 01:56
Post: #12
RE: Mose has arrived
(2017-07-21 23:29)Ant_61 Wrote:  
(2017-07-21 22:53)AmericanEars Wrote:  
(2017-07-21 11:44)Ant_61 Wrote:  Anyone else spotted the misprint on the enclosure ?
Nope. Do tell.
117 as opposed to 110
I don't think the 117 is a typo. The circuit board in the first picture also has 117 printed on it. I think the 110 value only indicates the minimum input voltage the transformer can handle.
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2017-07-22, 12:52 (This post was last modified: 2017-07-22 15:16 by Peer Gynt.)
Post: #13
RE: Mose has arrived
Beats me.

Just listen .... or not
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2017-07-22, 15:46
Post: #14
RE: Mose has arrived
Voltage standards are all pretty nominal with Japan running 100V and other parts of the world running around 120V or 230V which is the current IEC standard. However there are parts or Europe and the UK running 220V, 240V and even a few at 250V. The US also has been listed as 110, 115, 117 and 120V. The reason is "The modern combinations of 230 V/50 Hz and 120 V/60 Hz, listed in IEC 60038, did not apply in the first few decades of the 20th century and are still not universal."

A little more in depth explanation for those interested:

"Following voltage harmonisation, electricity supplies within the European Union are now nominally 230 V ±10% at 50 Hz. For a transition period (1995–2008), countries that had previously used 220 V changed to a narrower asymmetric tolerance range of 230 V +6%/−10% and those (like the UK) that had previously used 240 V changed to 230 V +10%/−6%. No change in voltage is required by either system as both 220 V and 240 V fall within the lower 230 V tolerance bands (230 V ±10%). Some areas of the UK still have 250 volts for legacy reasons, but these also fall within the 10% tolerance band of 230 volts. In practice, this allows countries to continue to supply the same voltage (220 or 240 V), at least until existing supply transformers are replaced. Equipment (with the exception of filament bulbs) used in these countries is designed to accept any voltage within the specified range. In the United States and Canada, national standards specify that the nominal voltage at the source should be 120 V and allow a range of 114 V to 126 V (RMS) (−5% to +5%). Historically 110 V, 115 V and 117 V have been used at different times and places in North America. Mains power is sometimes spoken of as 110 V; however, 120 V is the nominal voltage."

In light of this it isn't surprising that nobody knows for sure what to call the voltages. The Mose makes this obvious as the back panel and the AC connection on the board state 220/117V whereas the transformer it feeds is labeled 250/110V. If labeled to the IEC standard it would read 230/120V. Be that as it may, as noted above there is a wide tolerance of roughly 5-10% allowed above and below these standards and the actual voltage varies quite a bit in different locales and also at different times of day depending on load on the system. Because of this most electronics and appliances are designed to work within a range of at least 110 to 126V or 210 to 250V with much of the lower voltage gear also good down to about 95V to handle the Japanese market. Switch mode power supplies, as used in most equipment from Linn and Lejonklou, among many others, are often auto-ranging and will generally work at the full range of voltages with most companies listing 100-120V and 220-240V but some show a wider range in accordance with what the supplies can actually accept. For example Lejonklou SMPS gear lists 90-132V and 187-264V.

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2017-07-22, 18:09 (This post was last modified: 2017-07-22 18:15 by Glyn Ruck.)
Post: #15
RE: Mose has arrived
Yep ~ Many switch mode PSU's will tolerate from 90 to 264V. Cheap to build & equipment sometimes just labeled to suit market. (but will tolerate any world voltage)

Cincon example:

[Image: attachment.php?aid=10996]


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2017-07-22, 18:53
Post: #16
RE: Mose has arrived
(2017-07-21 23:29)Ant_61 Wrote:  
(2017-07-21 22:53)AmericanEars Wrote:  
(2017-07-21 11:44)Ant_61 Wrote:  Anyone else spotted the misprint on the enclosure ?
Nope. Do tell.
117 as opposed to 110

Wow....

Impressive attention to detail.... you must be seriously OCD!! Big GrinBig GrinBig GrinBig Grin
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2017-07-22, 19:15
Post: #17
RE: Mose has arrived
(2017-07-22 18:53)JDEC Wrote:  Wow....

Impressive attention to detail.... you must be seriously OCD!! Big GrinBig GrinBig GrinBig Grin

Naw, just in the Sherlock Holmes mode...did you notice the Dyson vacuum cleaner? Cool

Original 1978 Fluted Afromosia LP12, Ekos 2, Lyra Kleos SL and lots of other stuff from the 70's that still work fine.
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