Mainly for working on TV & Audio equipment .
Would much appreciate some recommendations .
Would much appreciate some recommendations .
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Re: Mains isolating transformer advice please
Carrol & Meynell, made in the UK. -
Re: Mains isolating transformer advice please
Thanks
Do you have a link ?
Also looking at one from RS ComponentsComment
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Re: Mains isolating transformer advice please
RS seem to be agents for them .
This one looks interesting .
https://uk.rs-online.com/web/p/safet...rmers/8129572/Comment
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Re: Mains isolating transformer advice please
that RS link is confusing,
it has pictures with both IEC603 (110v) and SCHUKO (230v) input cables!
that said, i'm not sure a transformer with the output center-tapped to earth is a good idea with switching psu's!!Comment
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Re: Mains isolating transformer advice please
I think it's this one I have https://uk.rs-online.com/web/p/safet...rmers/4368805/Comment
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Re: Mains isolating transformer advice please
Cheers
Sorry , my error .Posted the wrong link .
It's just a straight isolating transformer i require for the 240V mains .
Will spend some time this evening checking a few out , & update on the one i decide to buy .Last edited by zen; 03-04-2021, 08:25 AM.Comment
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Re: Mains isolating transformer advice please
I'm not sure about that - My 240V:240V 2000VA isolation transformer, bought from ebay in the UK looks like a site transformer, it has the same circular 3 pin output connector as a site transformer, and it is yellow, but for sure it is 240v in 240v outFollow me on YouTube
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Learn Electronics Repair
https://www.youtube.com/channel/UCFX...R8UZ2vg/videosComment
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Re: Mains isolating transformer advice please
yellow plugs and sockets are 110v . blue is 220v . same with external wire colours . plugs and sockets are keyed to try and stop you putting in wrong holesComment
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Re: Mains isolating transformer advice please
yea, i hope your not running a 110:110 isolator at 220v!!!
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Re: Mains isolating transformer advice please
for the record,
yellow = 110v
blue = 220v
red = 415v
also is white and purple among others for unusual voltages.Comment
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Re: Mains isolating transformer advice please
Great info , thanksComment
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I bought this Chinese made step up transformer to run some 220v appliances. Some of the wires were brittle and broke off. I attempted to improve some of the wiring with spade terminals and heatshrink tubing as the wires were just soldered straight to the connectors. Any advice on how to rewire the broken wires on this step up transformer? I'm unsure how to go about rewiring this to a better safe working condition. -
Hi
(not sure if this is the right place to post this but couldnt see anywhere else)
I Have a very old battery charger which was given to me - it is 6v/12v 10amp.
It is in like new condition and even in the origonal box - it works fine but is very noisey (buzzing)
It buzzes as soon as its turned on even with no load on it.
It appears to be the transformer thats making the noise.
Can anything be done apart from find a new transformer?
(Have attached a picture and a small video of the noise)
Thanks... -
Hello!
I'm looking at an original Xbox PSU: Foxlink ftps-0002 rev. B. The 12 V output is too low, and the 5 V output is too (?) high. Unfortunately I don't have an oscilloscope but only a DMM for diagnosis.
Measured voltages with no load:
After rectifier diodes
12V: 6.17 V
5V: 5.67 V
Secondary transformer pins AC measurement (really don't know if this says anything)
12V: 2-2.5 V
5V: 1.04 V
I also have another (working) Xbox psu from Delta. The same measures there, in order, being: 10.79,... -
Hi guys
So here is a 'weird device' it is an IKON IP-450 A2 Paper laminator
The customer says it was warming up then suddenly tripped out the 220V mains
He replaced the 5A fuse which had blown but it did the same thing straight away as soon as powered on, it trips out the power in his apartment. He tried another power lead and tried it at a friends address but the same occurs
So he brought it to me, having fitted a new fuse again.
I plugged it in and it worked fine - it was drawing about 3Amps and warmed up to maximum working temperature... -
Hi all,
Got this local made DC power supply (12/14V) given free as the transformer has melted. There is no marking or indication to identify what type or rating of transformer used.
Fyi,. I had a busted autogate mainboard with transformer with marking 13-0-13 . Is this the 13v dc type transformer?
My questions are
1. How do i test to see if the transformer is in good working condition?
2. Can this transformer (marking 13-0-13) be used to replace the melted transformer on the DC power supply?
Hope you guys understand what i was asking. My intention is...
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