Preowned Units
 

"Dave Plowman (News)" wrote in message
...
In article ,
~misfit~ wrote:
Once upon a time on usenet Huge wrote:
On 2017-08-19, Woody wrote:

"Sid Trehan" wrote in message
...
Good day,
I am a hifi dealer from India and am looking for Preowned
dealers
from South East Asia, UK and Europe for used 220v original
sharp
quick sale deals in brands like - Avm, Accuphase, Mcintosh and
also
Pmc. Only scratch less units max 8/10 please.

Thanks


If you are in India and looking for outlets in India, why are to
'advertising' in a UK newsgroup?

Probably doesn't understand what "uk." means. Usenet is pretty
mysterious to most people these days.

Obviously. You both seem to have missed the part where he says he's
looking to buy from markets which use ~220v gear including the UK.

The UK is 240v. Older equipment designed for 220v will very likely
go bang
on 240v. Unless the mains transformer has a 240v tapping.

[snip]

Unlikely. Yes the transformer and/or regulators might run a bit warmer
but it is very poor design if 10% over voltage causes something to
fail big time.


--
Woody

harrogate3 at ntlworld dot com

Preowned Units
 

In article ,
Phil Allison wrote:
Dave Plowman (Nutcase Moron) wrote:

------------------------------------

Obviously. You both seem to have missed the part where he says he's
looking to buy from markets which use ~220v gear including the UK.

The UK is 240v. Older equipment designed for 220v will very likely go bang
on 240v. Unless the mains transformer has a 240v tapping.


** India is a 230VAC country, so is the UK and Australia, despite the supply being 240VAC at most locations.


230v here was an EU harmonisation. So that equipment made afterwards had
to be suitable for the spread across the EU. But the voltage didn't change
in the UK, even although the specification did. For many things it is OK -
but tungsten lamps have either their brightness and or life altered if not
run at the voltage they are designed for.

220v sounds very like a US etc standard.

--
*Remember: First you pillage, then you burn.

Dave Plowman London SW
To e-mail, change noise into sound.

Preowned Units
 

In article ,
Woody wrote:
The UK is 240v. Older equipment designed for 220v will very likely go
bang on 240v. Unless the mains transformer has a 240v tapping.

[snip]

Unlikely. Yes the transformer and/or regulators might run a bit warmer
but it is very poor design if 10% over voltage causes something to
fail big time.

I'd expect anything to cope with a short term over voltage. But long term
may well be very different. Up to you if you want to risk it.

I have a Quad 405 on the bench at the moment. That has settings for
220,230 and 240v. Why would they bother if it didn't matter?

--
*America is so advanced that even the chairs are electric.

Dave Plowman London SW
To e-mail, change noise into sound.

Preowned Units
 

"Dave Plowman (News)" wrote in message
...
In article ,
Woody wrote:
The UK is 240v. Older equipment designed for 220v will very
likely go
bang on 240v. Unless the mains transformer has a 240v tapping.

[snip]

Unlikely. Yes the transformer and/or regulators might run a bit
warmer
but it is very poor design if 10% over voltage causes something to
fail big time.

I'd expect anything to cope with a short term over voltage. But long
term
may well be very different. Up to you if you want to risk it.

I have a Quad 405 on the bench at the moment. That has settings for
220,230 and 240v. Why would they bother if it didn't matter?


1. Insufficient heat-sinking on power devices to reduce size and cost
2. Non-regulated power supply



--
Woody

harrogate3 at ntlworld dot com

Preowned Units
 

In article , "Dave Plowman (News)"
writes:

220v sounds very like a US etc standard.

Doesn't sound much like a US standard as their mains voltage is around
half that.

--
Mike Fleming

Preowned Units
 

In article ,
Woody wrote:
I have a Quad 405 on the bench at the moment. That has settings for
220,230 and 240v. Why would they bother if it didn't matter?


1. Insufficient heat-sinking on power devices to reduce size and cost
2. Non-regulated power supply

Most do tend to keep size to a minimum.
Do many power amps use a regulated supply?

--
*A plateau is a high form of flattery*

Dave Plowman London SW
To e-mail, change noise into sound.

Preowned Units
 

In article ,
Mike Fleming wrote:
In article , "Dave Plowman (News)"
writes:

220v sounds very like a US etc standard.

Doesn't sound much like a US standard as their mains voltage is around
half that.

They tend to have a higher voltage for things like electric cookers and
heating, etc.

--
*Marriage changes passion - suddenly you're in bed with a relative*

Dave Plowman London SW
To e-mail, change noise into sound.

Preowned Units
 

On 20/08/2017 18:37, Dave Plowman (News) wrote:
In article ,
Mike Fleming wrote:
In article , "Dave Plowman (News)"
writes:

220v sounds very like a US etc standard.

Doesn't sound much like a US standard as their mains voltage is around
half that.

They tend to have a higher voltage for things like electric cookers and
heating, etc.

Not for a hifi component though.

Andy

Preowned Units
 

In article , "Dave Plowman (News)"
writes:

In article ,
Mike Fleming wrote:
In article , "Dave Plowman (News)"
writes:

220v sounds very like a US etc standard.

Doesn't sound much like a US standard as their mains voltage is around
half that.

They tend to have a higher voltage for things like electric cookers and
heating, etc.

Hi-fi units would generally be run off common or garden mains rather
than the higher voltage (which IIRC is done by using opposite phases,
so it's actually two 120V supplies in antiphase with a neutral which
is ignored to get 240V).

--
Mike Fleming

Preowned Units
 

Dave Plowman (Nutcase Moron) wrote:

---------------------------------------


Obviously. You both seem to have missed the part where he says he's
looking to buy from markets which use ~220v gear including the UK.

The UK is 240v. Older equipment designed for 220v will very likely go bang
on 240v. Unless the mains transformer has a 240v tapping.


** India is a 230VAC country, so is the UK and Australia, despite the supply being 240VAC at most locations.


230v here was an EU harmonisation. So that equipment made afterwards had
to be suitable for the spread across the EU.


** Australia made the same adoption, but noting changed but the tolerance band on the AC supply.

But the voltage didn't change
in the UK, even although the specification did.


220v sounds very like a US etc standard.


** The USA is nominal 120VAC with two phase ( ie antiphase) power being 240VAC.

India is not 220V and the OP has no issue with any audio gear sold in the UK.


..... Phil