In case anyone wants some cheap power suppleis for their DIY
electronics projects.
www.prepaymania.co.uk is currently flogging off a Nokia
charger, number ACP-7X for £0.99. Yup, less than a quid.

I bought a few the other day, and (as you do) took one apart.
Inside it's a small transformer and 4 diodes arranged as a
bridge rectifier - no smoothing capacitor so you'll have to
provide your own. The no-load )smoothed) output on mine was
12.9V, dropping to 7.8V at 166mA - so quite handy for a 100 mA
regulated at 5V. After fiddling about with the charger
I just ordered a few more.
Finally, possibly the best bit: they're sent with free P&P

pete wrote:
In case anyone wants some cheap power suppleis for their DIY
electronics projects.
www.prepaymania.co.uk is currently flogging off a Nokia
charger, number ACP-7X for £0.99. Yup, less than a quid.

I bought a few the other day, and (as you do) took one apart.
Inside it's a small transformer and 4 diodes arranged as a
bridge rectifier - no smoothing capacitor so you'll have to
provide your own. The no-load )smoothed) output on mine was
12.9V, dropping to 7.8V at 166mA - so quite handy for a 100 mA
regulated at 5V. After fiddling about with the charger
I just ordered a few more.
Finally, possibly the best bit: they're sent with free P&P

Thanks for that, just purchased four off .
Cheers
Don

--
Bold is Brown with the People's Purse. (loosely translated from a Welsh couplet "Hael yw Hywel ar bwrs y wlad")

pete wrote:
I bought a few the other day, and (as you do) took one apart.
Inside it's a small transformer and 4 diodes arranged as a
bridge rectifier - no smoothing capacitor so you'll have to
provide your own. The no-load )smoothed) output on mine was
12.9V, dropping to 7.8V at 166mA - so quite handy for a 100 mA
regulated at 5V. After fiddling about with the charger
I just ordered a few more.
Finally, possibly the best bit: they're sent with free P&P

Advertised as containing :-

* Built in Intelligent IC chip will prevent this charger from over
heating or overcharging the battery
* IC chip will recognize a fully charged battery and automatically
switches to a saver mode

Is this 'IC chip' a fuse?

--
Adrian C

On Thu, 10 Sep 2009 16:00:17 +0100, Adrian C wrote:
pete wrote:
I bought a few the other day, and (as you do) took one apart.
Inside it's a small transformer and 4 diodes arranged as a
bridge rectifier - no smoothing capacitor so you'll have to
provide your own. The no-load )smoothed) output on mine was
12.9V, dropping to 7.8V at 166mA - so quite handy for a 100 mA
regulated at 5V. After fiddling about with the charger
I just ordered a few more.
Finally, possibly the best bit: they're sent with free P&P

Advertised as containing :-

* Built in Intelligent IC chip will prevent this charger from over
heating or overcharging the battery
* IC chip will recognize a fully charged battery and automatically
switches to a saver mode

Is this 'IC chip' a fuse?

Yes, a thermal fuse (small disc placed in close contact with the transformer)

On Sep 10, 1:04*pm, pete wrote:
In case anyone wants some cheap power suppleis for their DIY
electronics projects.www.prepaymania.co.ukis currently flogging off a Nokia
charger, number ACP-7X for £0.99. Yup, less than a quid.

I bought a few the other day, and (as you do) took one apart.
Inside it's a small transformer and 4 diodes arranged as a
bridge rectifier - no smoothing capacitor so you'll have to
provide your own. The no-load )smoothed) output on mine was
12.9V, dropping to 7.8V at 166mA - so quite handy for a 100 mA
regulated at 5V. After fiddling about with the charger
I just ordered a few more.
Finally, possibly the best bit: they're sent with free P&P

wallwarts are binned in vast numbers


NT