Re: DIY Car Battery Charger
I opened a UPS today to take the Transformer but it has 5 wires on the primary side and 3 wires at the secondary side.
Do you know which wires should I use please?
Thanks
Mario...
mike9h29
Senior Member
Last Activity: 01-02-2015, 10:53 AM
Joined: 03-08-2011
Location: Malta
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Re: DIY Car Battery Charger
Hi,
Thanks for the useful reply.
I have a battery charger already, but I want to build something and decided to build a charger
I will search for a 12/14v transformer and use that.
Thanks again.
Mario...Leave a comment:
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DIY Car Battery Charger
Hi,
I want to build a 12v Car Battery Charger.
What I have so far is a 18V Transformer. Is this good? or Its better if I find a 12/14v Transformer?
Also, for the rectifier, is this good please? [url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=110695506297&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en[/url]
I will also buy a Volt Meter and Amp Meter.
Any feedback is appreciated.
Thanks
Mariohttps://Hi,<br /> <br /> I want to...<br /> <br /> -
TECO LCD TV with MLT666A PSU
Hello all,
Its been a couple of months since I last posted here.
I have a problem with a TECO LCD TV Psu.
I started working on this PSU a couple of months ago, and all I remember is I replaced some FETs and Diodes as they where shorted.
But now I forgot what I did.
Today I tried it using the bulb method and it seems that it is still shorted as the bulb is lit when I turn the power on.
I am using 60w bulb. Could it be that the bulb is too small in wattage? or I still have a short in the PSU?
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Re: Asrock quality?
I work with Asrock Agent in Malta.
Believe me, they are far better than Asus. I know because we compare RMAs. We send more Asus.
Asrock now have High End / Gaming MBs aswell.Leave a comment:
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Re: Power Supply
Ok, I liked the idea of using a car battery, but I am afraid of it as it may explode and this will be used inside a house.
I tried to find a transformer but I cant find any.
I decided to go for SMPS. But I need some help please.
How can I adjust the voltage of a 12v PSU to 13.8v please?
Will connecting Big Capacitors to the output help with noise? (I just asked this question above)
Thanks
MarioLeave a comment:
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Re: Power Supply
Will connecting some big capacitors to the output of the psu kill the noise please?...Leave a comment:
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Re: Power Supply
I dont know exactly the current of the units, but I found on the internet that an HF Transceiver requires a minimum of 25A for TX.
Will a High End PC PSU do the job?...Leave a comment:
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Power Supply
Hello.
I need a Power Supply to power a CB, VHF, UHF and HF Radios.
I think I will need around 50/65A (12V) as I may add a linear amplifier in the future.
I can buy a PC PSU with separate rails for 12V or I can buy a big transformer and filter its output.
What do you think will be the best?
I dont need variable voltage.
Thanks
Mario -
Re: Using Equivalent Components
Hi
Thanks again for your reply.
I will start a new Thread in the TV section.
See you there
MarioLeave a comment:
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Re: Using Equivalent Components
Hi,
Thanks for your reply.
The transistor will be used in a 32" LCD TV PSU.
I could`nt find the P6NK60ZFP anywhere.
Will I do any harm if I try 2SK2141 instead of P6NK60ZFP?
Also, I found that even the fuse on this psu has been fried and the big capacitor 150uf 450v bloated. What could cause this damage please?
Thanks
MarioLeave a comment:
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Using Equivalent Components
Hello,
Yesterday I asked about (ST)P6NK60ZFP.
I found one on ebay but the seller asked for $45 to ship 10 of them to Malta!
I then tried to find it on other sites but no one had it.
As I was searching on the internet, I tried to cross reference the part and I found that 2SK2141 is the equivalent (Cross Reference) to my part.
How safe is it to use equivalent parts please?
Thanks
Mario -
Re: Burnt Transistor
So its not a 2 but a Z. Thats why I could`nt find it anywhere.
Thanks a lot for your help.
MarioLeave a comment:
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Burnt Transistor
Hello,
its me again
I am looking to buy a transistor P6NK602FP but I cant find any one selling them.
Can some one tell me from where I can buy it please?
Thanks in advance
Mario -
CRT Monitor
Hello
I have a 17" CRT Monitor with an Hourglass shape picture. Would this be a matter of bad capacitors? If yes, which caps do I have to replace? If not a cap issue, what should I look for please?
Thanks in advance
Mario -
Re: Caps Values
Thanks for the very detailed reply. Its great.
I will use panasonic FM series. But dont know From where I can order in bulk. Do you know anyone selling them at a good price please?...Leave a comment:
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Re: Caps Values
Thanks for your reply....Leave a comment:
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Caps Values
Hi,
I am thinking of making an order of around 1K caps. These will be mixed with batches of 100 each value so 10 values.
I know that I need low esr caps for TFT Monitors and LCD Monitors, but what about the ripple? Do I need low Ripple or High Ripple? I know that the best thing to do is to order the caps according to the bad caps values, but this is impossible for me as I need to have stock in hand.
One last thing. Are Elite caps any good? I am asking because I replace many of them, but only after 5 - 6 years of work. Or should they last much longer?... -
Re: Replaced bad caps, still having problems
most probably, you need low esr caps. some one will explain further.Leave a comment:
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Re: Dell Studio 1537 - PP33L
Whats best? Try to repair the mainboard or just replace it?
And what should I look for if repairing?
Thanks
MarioLeave a comment:
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