Spectral Voltage conversion

Elberoth

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Dec 16, 2012
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#21
Yes, but it implies that in 110V it would be using only half of the primary - some people consider it a poor practice.
Then Accuphase must be a shitty gear ;) Most (all ?) Accuphase compononts have separate primaries not only for 115 / 230V, but also for 100V. So at each given voltage, 2/3 of the primaries sits unused. And they are not the only manufacturer using this technique.
 
May 30, 2010
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#22
Then Accuphase must be a shitty gear ;) Most (all ?) Accuphase compononts have separate primaries not only for 115 / 230V, but also for 100V. So at each given voltage, 2/3 of the primaries sits unused. And they are not the only manufacturer using this technique.
Surely not, although I have very little experience with Accuphase. But they must have their reasons to prefer separate windings to tapped windings. Anyway it was why I said "some people". I think that some manufacturers will prefer it on the basis of convenience. Surely dedicated transformers for each voltage and mains frequency must be the best of the best, unless we are considering switching power supplies! ;)
 

Elberoth

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Dec 16, 2012
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#23
Definately. But it gets very expensive - basicly, you have to keep 3x the stock of every component (unless you make everything to order only).
 

cuprone1

New Member
Feb 10, 2013
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#24
As I would buy a 30 ss series II from Usa, it is very kind of you ( if possible) to find a definitive solution to this question: easy rewirings ot not?
Thanks in advance.
Piero
 

arteck

New Member
Dec 2, 2014
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#25
Also I will appreciate it very much if someone can let me know that how the voltage can be converted from 110V to 230V. Thanks
 

alecm

New Member
Apr 5, 2015
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#26
Hi Elberoth and all,
thank you for pointing out regarding voltage conversion.
I bought 15SS 110V recently and need to change it on 220V.
Could anyone help with appropriate photo of jumper set J11 for 230V?

Please see the photo 15ss for 110V

http://imgur.com/GlzYUev
 

geppo

New Member
Oct 27, 2010
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#30
The issue with the input fuse is not the current rating but the safety certification of the product. One thing is to make the preamp work with the other mains voltage, another thing is to maintain its safety certification valid in a different market than the intended one. Some component may be different depending on the geographical area of destination. The market value of a non-certifiable product is zero. In other words, it cannot be legally sold, either new or used. Safety related components are listed in the product test report done by a Competent Body. Anything different, although functionally equivalent, just doesn't "work".

Just my 2 cents
 

Elberoth

Member Sponsor
Dec 16, 2012
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#31
Hi Elberoth and all,
thank you for pointing out regarding voltage conversion.
I bought 15SS 110V recently and need to change it on 220V.
Could anyone help with appropriate photo of jumper set J11 for 230V?

Please see the photo 15ss for 110V

http://imgur.com/GlzYUev
Here is how the jumpers were set in the SS15 I had at home (original european 240V version):







Hope this helps.
 
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Elberoth

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Dec 16, 2012
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#33
No but I have images of the SS30 internals. As you can see, input voltage is beeing switched by this red jumper wire. Just ask someone who owns SS30 in the US to check what is the 115V US setting. On 220V models, it connects pins 1 and 3.

View attachment 13917
I have just noted that I gave the wrong piece of info in my previous post. The jumper on the 220V SS30 connects pins 1 and 4, not 1 and 3 as I stated in my post.

Here is a different angle which better shows that:



I had also another SS30, this time mk 2, which was set to 240V, where the jumper connects pins 1 and 5:



So it seems the correct pin settings are:

120V: pin 1 and 3
220V: pin 1 and 4
240V: pin 1 and 5

Pin 1 and 2 may be for 100V, but someone from Japan would need to confirm this.

USE AT YOUR OWN RISK !!!
 

ack

VIP/Donor & WBF Founding Member
May 6, 2010
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#34
15SS has couple of non-custom transformers - PACIFIC TRANSFORMERS PTT-02-30-40. It combines 230V and 115V inputs in one.
The details are here http://pactran.com/assets/catalog.pdf, page 14
So Terry's words looks like blowing a smoke...

Quite possible, so try Adam's pin reading and see if it works for you, and hopefully he's right and you won't blow up anything.
 

ack

VIP/Donor & WBF Founding Member
May 6, 2010
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Boston, MA
#36
Great! I'd like to know what Spectral, Terry and other dealers have to say about this...
 

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