I am deserving of a medal (maybe)

On Wednesday, 5 October 2016 16:27:15 UTC+1, charles wrote:

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Well done which is why we had to send back the unit to germany for repair. There must have been a reason why they fitted 32ma fuses. They were 3 other fuses in teh unit 160ma IIRC they supply spare fuses for those as they expect them to blow I assume but they don;t supply 32ma fuses .
So where such as fuse has blow and when replaced the unit no longer works y ou can;t DIY by just changing a fuse. this unit cost about £3k when br ought.

ce

It was somewhere in the power supply circutry of this unit.
http://www.feedback-instruments.com/products/education/electrical_power_mac hines/virtual_instrumentation
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It is possible to protect things like triacs against a short circuit, but the cost of doing so (and the extra space needed) makes it impractible for a domestic dimmer. But then so would an internal fuse - for those who can't open it up to replace such things. If someone doesn't know how to source a replacement triac, they're unlikely to know where to buy a specialist fuse either. And being rich, like you, would just have a new dimmer fitted by their 'man'.
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Dave Plowman snipped-for-privacy@davenoise.co.uk London SW
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On Thursday, 6 October 2016 11:13:25 UTC+1, Dave Plowman (News) wrote:

Yes I know.

What are you talking about ir what have you been snorting ?
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No you didn't.

Forgot you couldn't understand English.
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Dave Plowman snipped-for-privacy@davenoise.co.uk London SW
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On Thursday, 6 October 2016 14:36:53 UTC+1, Dave Plowman (News) wrote:

I do, I understand miniturisation and why almost all dimmers have been potted or enclosed for the past 5 years if not 10 at least. While you think we're living in the 80s.

Memeory failing at yuor age is it, maybe yuo forgot dimemrs of teh 70s might be worth repairing but moderns aren;t and can;t.
Or tell me where I can source a triac for these dimmers, just the first one will do, the V dim. You've claimed you can repair them.
by paying 30 bob for a 10 bob triac.
https://www.tlc-direct.co.uk/Main_Index/Lighting_Menu_Index/Wiring_Accessories~Dimmers_All/IQ_Dimmer_Modules/index.html
I'm betting you can;t.
And as for the specialised fuse, yes I know where to get them both RS and rapid do them our standard suppliers.
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Or write it, come to that.
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Dave Plowman snipped-for-privacy@davenoise.co.uk London SW
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Go on then. Give me the make and model of current dimmer which is potted.
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Dave Plowman snipped-for-privacy@davenoise.co.uk London SW
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On Thursday, 6 October 2016 15:50:49 UTC+1, Dave Plowman (News) wrote:

(Amazon.com product link shortened)
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(Amazon.com product link shortened)
Nice pics and spec - but unless I'm missing something to I have to take your word as to the construction?
Here is an actual pic of the internals of a current dimmer. Made by BG, so fairly typical of many.
<
http://i139.photobucket.com/albums/q309/trakkies/20161007_134807_zpsdh6jdcjk.jpg

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On Friday, 7 October 2016 14:34:18 UTC+1, Dave Plowman (News) wrote:

or find another.

doesn't say it's a dimmer it could be a motor speed controller with a headsink like that.
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It is a new BG 400w dimmer - complies to BS EN 60669-1 That you'll find in the sheds, etc. Suitable for all domestic lighting types - including transformer fed LV lighting that your Amazon special can't handle.
All dimmers I've ever seen have a heatsink. Like that. I take it you've never actually looked at one? No surprise you don't know how to repair one, then.
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On Friday, 7 October 2016 15:50:03 UTC+1, Dave Plowman (News) wrote:

I don't have transformer fed LV lighting so why would I need it.

Mine didn;t don;t forget that. It was encased. The one I showed yuo was a replacement I brought. The previous one that stoped working was brass effect brought from B&Q around 2006, which I broguh when I replaced the old fluorescent tube with a 4 way halagon light. I no longer have the brass dimmer or the fluorescent tube. B&Q haven't got the dimmer on their site. Although a similar one is in their store.
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Didn't think you'd understand it. As I said get one of your students to explain it.

Go ahead and fit a 50 mA fuse to your house lighting circuit. That will certainly protect your dimmer.
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On Thursday, 6 October 2016 00:37:21 UTC+1, Dave Plowman (News) wrote:

e

.

me

why are you saying this unit is a dimmer.
http://www.feedback-instruments.com/products/education/electrical_power_mac hines/virtual_instrumentation
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On Thursday, 6 October 2016 09:37:07 UTC+1, whisky-dave wrote:

the

se.

to

sume

il

achines/virtual_instrumentation
He's half out of it.
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On Thursday, 6 October 2016 10:06:42 UTC+1, snipped-for-privacy@gmail.com wrote:

h the


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fuse.

to

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_machines/virtual_instrumentation

And your're fully out of it.
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On Friday, 30 September 2016 15:31:46 UTC+1, whisky-dave wrote:

penny

B track

or under

£20 an hour is ok for a lot of people

y

light.
obviously the cost of resulting injuries would outweigh the lighting cost.

People dim efficient lamps now

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e can though that's the point and the item to be fixed needs to be of suffi cient value to make it worht fixing and for most an old TV of 5 years old i s hardly worth fixing.
I doubt that. But certainly there's some widely believed misinformation abo ut electronics.

n stock in my lab. If I had a dimmer that died I'd most likely take it apar t to see what was wrong but most dimmers I;'ve seem have surface mount devi ces with the number scrtched off and tyou have to buy them in packs of 10, resistors packs
ie you don't have the skills to fix it

have to buy them in quantities of 100, would hardly worth buying for one T V is it.

ditto

lse.

pointless gimmicks

pairing one of those.
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On Friday, 30 September 2016 16:23:36 UTC+1, snipped-for-privacy@gmail.com wrote:

:

e:

st penny

PCB track

for under

So if yuo have a dimmer that is faulty to get a repair man in at £20 I ssume you will pay for parts too....
I'd just get a new dimmer for half the cost of a repair
http://www.diy.com/departments/propower-13a-2-way-white-dimmer/832600_BQ.pr d
Why spend over £20 on replacing a £10 dimmer.

gly

no light.

.
How would you know that to be a fact. I don't leave my bathroom light on 24 /7 or even all of the night. Do you really leave the hall lights on all nifght.

Yes I do but NOT for efficincy or saving money but to have less light say f or when watching TV, I don't dim the lights just to save money. The main reason I use dimmers is to reduce the amount of light quicly and e asily.

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one can though that's the point and the item to be fixed needs to be of suf ficient value to make it worht fixing and for most an old TV of 5 years old is hardly worth fixing.

bout electronics.
Such as what they last forever because there;s no moving parts. We all shou ld know how accurate that is.

in stock in my lab. If I had a dimmer that died I'd most likely take it ap art to see what was wrong but most dimmers I;'ve seem have surface mount de vices with the number scrtched off and tyou have to buy them in packs of 10 , resistors packs

I do have the skills but won't waste my time or the colleges time fixing a dimmer switch.

else.

I thibnk curved is a pointless gimmick but 4K and HDR will be worth getting is 3 years or so.
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wrote:

Some do, including one of my neighbours.

You're wrong if there is only one person watching.

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On Monday, 3 October 2016 19:02:14 UTC+1, Rod Speed wrote:


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I'm right the curvature of teh screens is far higher than would be ]needed for normal viewing it works in cinimas but not very well on screen sizes of less that 60". What's the point of it if there's only one person watching then ?

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