I am trying to find a replacement AC/AC adaptor for my father in law, who
"accidentally" broke the adaptor to power his optic christmas tree last
year. I have already tried Maplin and a host of other local electrical
shops along with numerous hours searching on the net and all to no avail.
The only joy I have had on t'interweb are OEM manufacturers, some of which
requires a minimum order of 1000 parts!

Here is the spec. as taken off the back of what is left of the adaptor:

Manufacturer : MAXIM
AC/AC Adaptor
MODEL: MBA481218
INPUT: 240V ~ 50Hz
OUTPUT: 12V ~ 1830mA

Can anyone suggest a suitable replacement for the adaptor - or do 999 other
people also wish to buy an AC/AC adaptor :-)?

Cheers,
Durn

Durn wrote:
I am trying to find a replacement AC/AC adaptor for my father in law,
who "accidentally" broke the adaptor to power his optic christmas
tree last year. I have already tried Maplin and a host of other
local electrical shops along with numerous hours searching on the net
and all to no avail. The only joy I have had on t'interweb are OEM
manufacturers, some of which requires a minimum order of 1000 parts!

Here is the spec. as taken off the back of what is left of the
adaptor:

Manufacturer : MAXIM
AC/AC Adaptor
MODEL: MBA481218
INPUT: 240V ~ 50Hz
OUTPUT: 12V ~ 1830mA

Can anyone suggest a suitable replacement for the adaptor - or do 999
other people also wish to buy an AC/AC adaptor :-)?

Cheers,
Durn

You sure its not 12v DC?

--
Sir Benjamin Middlethwaite

The back of the adaptor has AC/AC Adaptor written on it.
If I google the product code, here is one of the results:
http://www.globalsources.com/gsol/I/...8801665616.htm

Durn

"The3rd Earl Of Derby" wrote in message
k...
Durn wrote:
I am trying to find a replacement AC/AC adaptor for my father in law,
who "accidentally" broke the adaptor to power his optic christmas
tree last year. I have already tried Maplin and a host of other
local electrical shops along with numerous hours searching on the net
and all to no avail. The only joy I have had on t'interweb are OEM
manufacturers, some of which requires a minimum order of 1000 parts!

Here is the spec. as taken off the back of what is left of the
adaptor:

Manufacturer : MAXIM
AC/AC Adaptor
MODEL: MBA481218
INPUT: 240V ~ 50Hz
OUTPUT: 12V ~ 1830mA

Can anyone suggest a suitable replacement for the adaptor - or do 999
other people also wish to buy an AC/AC adaptor :-)?

Cheers,
Durn

You sure its not 12v DC?

--
Sir Benjamin Middlethwaite

"Durn" wrote in message
...
I am trying to find a replacement AC/AC adaptor for my father in
law, who
"accidentally" broke the adaptor to power his optic christmas tree
last
year. I have already tried Maplin and a host of other local
electrical
shops along with numerous hours searching on the net and all to no
avail.
The only joy I have had on t'interweb are OEM manufacturers, some of
which
requires a minimum order of 1000 parts!

Here is the spec. as taken off the back of what is left of the
adaptor:

Manufacturer : MAXIM
AC/AC Adaptor
MODEL: MBA481218
INPUT: 240V ~ 50Hz
OUTPUT: 12V ~ 1830mA

Can anyone suggest a suitable replacement for the adaptor - or do
999 other
people also wish to buy an AC/AC adaptor :-)?

Cheers,
Durn



It's only a transformer 240v in and 12v out at 1.8 amps. Maplin sell
part WB25C for £9.99 that fits the bill, but you would have to mount
it in something to make it safe. According to their web site they have
66 in stock!

AWEM

The3rd Earl Of Derby wrote:
Durn wrote:
I am trying to find a replacement AC/AC adaptor for my father in law,
who "accidentally" broke the adaptor to power his optic christmas
tree last year. I have already tried Maplin and a host of other
local electrical shops along with numerous hours searching on the net
and all to no avail. The only joy I have had on t'interweb are OEM
manufacturers, some of which requires a minimum order of 1000 parts!

Here is the spec. as taken off the back of what is left of the
adaptor:

Manufacturer : MAXIM
AC/AC Adaptor
MODEL: MBA481218
INPUT: 240V ~ 50Hz
OUTPUT: 12V ~ 1830mA

Can anyone suggest a suitable replacement for the adaptor - or do 999
other people also wish to buy an AC/AC adaptor :-)?

Cheers,
Durn

You sure its not 12v DC?

Ho its a jap thing
http://tinyurl.com/b33uu
--
Sir Benjamin Middlethwaite

Right then - time to dig out my electronics and soldering books!

Thanks for the advice,
Durn.

"Andrew Mawson" wrote in message
...

"Durn" wrote in message
...
I am trying to find a replacement AC/AC adaptor for my father in
law, who
"accidentally" broke the adaptor to power his optic christmas tree
last
year. I have already tried Maplin and a host of other local
electrical
shops along with numerous hours searching on the net and all to no
avail.
The only joy I have had on t'interweb are OEM manufacturers, some of
which
requires a minimum order of 1000 parts!

Here is the spec. as taken off the back of what is left of the
adaptor:

Manufacturer : MAXIM
AC/AC Adaptor
MODEL: MBA481218
INPUT: 240V ~ 50Hz
OUTPUT: 12V ~ 1830mA

Can anyone suggest a suitable replacement for the adaptor - or do
999 other
people also wish to buy an AC/AC adaptor :-)?

Cheers,
Durn



It's only a transformer 240v in and 12v out at 1.8 amps. Maplin sell
part WB25C for £9.99 that fits the bill, but you would have to mount
it in something to make it safe. According to their web site they have
66 in stock!

AWEM

On Thu, 15 Dec 2005 18:50:05 UTC, "Durn" wrote:

I am trying to find a replacement AC/AC adaptor for my father in law, who
"accidentally" broke the adaptor to power his optic christmas tree last
year. I have already tried Maplin and a host of other local electrical
shops along with numerous hours searching on the net and all to no avail.
The only joy I have had on t'interweb are OEM manufacturers, some of which
requires a minimum order of 1000 parts!

Here is the spec. as taken off the back of what is left of the adaptor:

Manufacturer : MAXIM
AC/AC Adaptor
MODEL: MBA481218
INPUT: 240V ~ 50Hz
OUTPUT: 12V ~ 1830mA

Can anyone suggest a suitable replacement for the adaptor - or do 999 other
people also wish to buy an AC/AC adaptor :-)?

If it really is AC/AC....then look at garden lighting transformers. I
see a 60W (5000mA) one here for 11.39 plus VAT.

--
The information contained in this post is copyright the
poster, and specifically may not be published in, or used by
Avenue Supplies, http://avenuesupplies.co.uk

In message , Durn
writes
I am trying to find a replacement AC/AC adaptor for my father in law, who
"accidentally" broke the adaptor to power his optic christmas tree last
year. I have already tried Maplin and a host of other local electrical
shops along with numerous hours searching on the net and all to no avail.
The only joy I have had on t'interweb are OEM manufacturers, some of which
requires a minimum order of 1000 parts!

Here is the spec. as taken off the back of what is left of the adaptor:

Manufacturer : MAXIM
AC/AC Adaptor
MODEL: MBA481218
INPUT: 240V ~ 50Hz
OUTPUT: 12V ~ 1830mA

Can anyone suggest a suitable replacement for the adaptor - or do 999 other
people also wish to buy an AC/AC adaptor :-)?

Again - CPC

--
geoff

On Thu, 15 Dec 2005 21:54:50 UTC, raden wrote:

Can anyone suggest a suitable replacement for the adaptor - or do 999 other
people also wish to buy an AC/AC adaptor :-)?

Again - CPC

They don't appear to do anything of quite that current rating in the
main PSU bit - but, as I said, there's the garden light supplies at the
end of the Power section.

--
The information contained in this post is copyright the
poster, and specifically may not be published in, or used by
Avenue Supplies, http://avenuesupplies.co.uk

In message , Bob Eager
writes
On Thu, 15 Dec 2005 21:54:50 UTC, raden wrote:

Can anyone suggest a suitable replacement for the adaptor - or do 999 other
people also wish to buy an AC/AC adaptor :-)?

Again - CPC

They don't appear to do anything of quite that current rating in the
main PSU bit - but, as I said, there's the garden light supplies at the
end of the Power section.

Ah ~ 2Amps

not paying close enough attention ... as usual

--
geoff

Durn wrote:

I am trying to find a replacement AC/AC adaptor for my father in law, who
"accidentally" broke the adaptor to power his optic christmas tree last
year. I have already tried Maplin and a host of other local electrical
shops along with numerous hours searching on the net and all to no avail.
The only joy I have had on t'interweb are OEM manufacturers, some of which
requires a minimum order of 1000 parts!

Here is the spec. as taken off the back of what is left of the adaptor:

Manufacturer : MAXIM
AC/AC Adaptor
MODEL: MBA481218
INPUT: 240V ~ 50Hz
OUTPUT: 12V ~ 1830mA

Can anyone suggest a suitable replacement for the adaptor - or do 999
other people also wish to buy an AC/AC adaptor :-)?

Low voltage (halogen) lighting transformer? Not sure if your (dad's) lights
are really going to be fussed whether it's really AC: it may just be that
they don't mind that it's not DC so there was no point spending extra on
rectifying and smoothing the output on the original unit.

However if there's a rectifier and electronics inside the light set then it
might not like the high frequency output of electronic 'transformers'. A
suitably-rated (12 * 1830 ~= 20W) copper + iron transformer (e.g. out of a
cheapy 5 quid LV lamp) should do.

John Stumbles wrote:
Durn wrote:

I am trying to find a replacement AC/AC adaptor for my father in law, who
"accidentally" broke the adaptor to power his optic christmas tree last
snip
Low voltage (halogen) lighting transformer? Not sure if your (dad's) lights
are really going to be fussed whether it's really AC: it may just be that
they don't mind that it's not DC so there was no point spending extra on
rectifying and smoothing the output on the original unit.

IOf it's like mine.
Then AC is needed - thjere is a little AC motor inside to turn the
colourwheel, to make it change colours.

Ian Stirling wrote:

John Stumbles wrote:
Durn wrote:

I am trying to find a replacement AC/AC adaptor for my father in law,
who "accidentally" broke the adaptor to power his optic christmas tree
last
snip
Low voltage (halogen) lighting transformer? Not sure if your (dad's)
lights are really going to be fussed whether it's really AC: it may just
be that they don't mind that it's not DC so there was no point spending
extra on rectifying and smoothing the output on the original unit.

IOf it's like mine.
Then AC is needed - thjere is a little AC motor inside to turn the
colourwheel, to make it change colours.

Really - a 12V AC motor?

I'm not doubting that such a thing is possible, just wondering about the
economies of scale: if I were designing a rock-bottom-price consumer gizmo
I'd expect to find that an off-the-shelf 12V dc motor (made by the zillion)
plus a diode, would be cheaper than a 12V ac motor which must be quite a
rare beast.

In article ,
John Stumbles wrote:
I'm not doubting that such a thing is possible, just wondering about the
economies of scale: if I were designing a rock-bottom-price consumer
gizmo I'd expect to find that an off-the-shelf 12V dc motor (made by the
zillion) plus a diode, would be cheaper than a 12V ac motor which must
be quite a rare beast.

Small synchronous motors are common on things like washing machine
programmers, etc. DC motors tend to run too fast.

--
*I'm not as think as you drunk I am.

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

Dave Plowman (News) wrote:

In article ,
John Stumbles wrote:
I'm not doubting that such a thing is possible, just wondering about the
economies of scale: if I were designing a rock-bottom-price consumer
gizmo I'd expect to find that an off-the-shelf 12V dc motor (made by the
zillion) plus a diode, would be cheaper than a 12V ac motor which must
be quite a rare beast.

Small synchronous motors are common on things like washing machine
programmers, etc. DC motors tend to run too fast.

Yes but they're mains not 12V. I agree it could be 12V AC and what you say
about the speed is a point, but it would surely be more expensive than
either a 12 DC or 240V AC motor because it would have to be made specially
for this product.

In article ,
John Stumbles wrote:
I'm not doubting that such a thing is possible, just wondering about
the economies of scale: if I were designing a rock-bottom-price
consumer gizmo I'd expect to find that an off-the-shelf 12V dc motor
(made by the zillion) plus a diode, would be cheaper than a 12V ac
motor which must be quite a rare beast.

Small synchronous motors are common on things like washing machine
programmers, etc. DC motors tend to run too fast.

Yes but they're mains not 12V. I agree it could be 12V AC and what you
say about the speed is a point, but it would surely be more expensive
than either a 12 DC or 240V AC motor because it would have to be made
specially for this product.

Could be. Small slow motors for things like colour wheels are fairly
common on fibre optic decorative lamps etc. Anyone had one apart to see
what it is?

--
*Why is it that most nudists are people you don't want to see naked?*

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

"Dave Plowman (News)" wrote:
In article ,
John Stumbles wrote:
I'm not doubting that such a thing is possible, just wondering about
the economies of scale: if I were designing a rock-bottom-price
consumer gizmo I'd expect to find that an off-the-shelf 12V dc motor
(made by the zillion) plus a diode, would be cheaper than a 12V ac
motor which must be quite a rare beast.
snip
Could be. Small slow motors for things like colour wheels are fairly
common on fibre optic decorative lamps etc. Anyone had one apart to see
what it is?

Me.
My little tree has a 5V 1A lamp (with integrated reflector) pointed
into the ~3cm fiber bundle that comes from the branches from some 1cm away.

Between the end of the fiber bundle and the light is a colourwheel run
from a standard slow speed AC motor, like is used in microwaves et al,
running at maybe 5RPM.

I took it apart after 5VDC failed to rotate it.

IIRC, it was 10 quid all-in.

Ian Stirling wrote:

"Dave Plowman (News)" wrote:

... Small slow motors for things like colour wheels are fairly
common on fibre optic decorative lamps etc. Anyone had one apart to see
what it is?

My little tree has a 5V 1A lamp (with integrated reflector) pointed
into the ~3cm fiber bundle that comes from the branches from some 1cm
away.

Between the end of the fiber bundle and the light is a colourwheel run
from a standard slow speed AC motor, like is used in microwaves et al,
running at maybe 5RPM.

I took it apart after 5VDC failed to rotate it.

So did 5V AC do the trick?

Presumably these are synchron(ous) motors similar working on the same
principle as those in motorised valves, electric time switches and
old-fashioned CH timers (and very old mains electric clocks).

John Stumbles wrote:
Ian Stirling wrote:

"Dave Plowman (News)" wrote:

... Small slow motors for things like colour wheels are fairly
common on fibre optic decorative lamps etc. Anyone had one apart to see
what it is?

My little tree has a 5V 1A lamp (with integrated reflector) pointed
into the ~3cm fiber bundle that comes from the branches from some 1cm
away.

Between the end of the fiber bundle and the light is a colourwheel run
from a standard slow speed AC motor, like is used in microwaves et al,
running at maybe 5RPM.

I took it apart after 5VDC failed to rotate it.

So did 5V AC do the trick?

Yes.

Presumably these are synchron(ous) motors similar working on the same
principle as those in motorised valves, electric time switches and
old-fashioned CH timers (and very old mains electric clocks).

Yes.
(for others)
These things are typically a pancake, 60mm in diamter, 20mm thick, with
a takeoff shaft 10mm off-center.
There is inside a little circular magnet, between the poles of an electromagnet
in the bottom 'half', and the upper half is a gearbox reducing to whatever
speed, typically in the range 0.1-60RPM.
Low single digit, or fractional watts consumption, and found in everthing
from washing machine timers to clocks, to ...

replying to Durn, 12vac wrote:
Here's the part you need - 12V AC/AC, perfect for powering your fibre optic
Christmas tree:
http://myvolts.co.uk/product/9822/Po...dapter_charger

--
for full context, visit https://www.homeownershub.com/uk-diy...rs-221897-.htm

On 11/12/2017 16:44, 12vac wrote:
replying to Durn, 12vac wrote:
Here's the part you need - 12V AC/AC, perfect for powering your fibre optic
Christmas tree:
http://myvolts.co.uk/product/9822/Po...dapter_charger



He has probably thrown away the Christmas tree since he asked the
question 12 years ago.

Please see
http://wiki.diyfaq.org.uk/index.php/Home_owners_hub



..

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

On 11/12/2017 16:52, alan_m wrote:
On 11/12/2017 16:44, 12vac wrote:
replying to Durn, 12vac wrote:
Here's the part you need - 12V AC/AC, perfect for powering your fibre
optic
Christmas tree:
http://myvolts.co.uk/product/9822/Po...dapter_charger



He has probably thrown away the Christmas tree since he asked the
question 12 years ago.

Might still be in his loft!



--
Adam

I had a situation a few years ago where my colleagues had lost the PSU for the fibre optic Christmas tree. It did indeed require AC to make the motor turn (I found an old fashioned AC / DC wall wart and bypassed the rectifier regulator and capacitor.

There is no real excuse for this error now as even I can see the posting
date of the posts on the platform. However quite why it regurgitates old
posts every so often is a whole other issue that the people running that
portal need to get off their backsides and solve.
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"alan_m" wrote in message
...
On 11/12/2017 16:44, 12vac wrote:
replying to Durn, 12vac wrote:
Here's the part you need - 12V AC/AC, perfect for powering your fibre
optic
Christmas tree:
http://myvolts.co.uk/product/9822/Po...dapter_charger

He has probably thrown away the Christmas tree since he asked the question
12 years ago.

Please see
http://wiki.diyfaq.org.uk/index.php/Home_owners_hub



.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

On 12/12/2017 08:57, Brian Gaff wrote:
There is no real excuse for this error now as even I can see the posting
date of the posts on the platform.

If you come into the home users hub by way of their opening page there
is a list of postings that need advice. The "home user" doesn't see the
posting date when replying this way. We, on the Usenet, see the posting
date because after the answer is posted it gets a tag referring it back
to the original thread which is often 10 to 15 years ago.


However quite why it regurgitates old
posts every so often is a whole other issue that the people running that
portal need to get off their backsides and solve.

For them There is nothing to solve. Home user hub is just out to make
money from what others provide for free. To keep their site dynamic they
have to recycle all the old crap. They have 76 thousand ongoing
discussions in this DIY newsgroup alone.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk