AC Line Filter for 13.8V/5A power supply (ARRL handbook)

[ssbothwell KJ6RSG]

hi guys,

i've been away for a while now and havent had many chances to check this forum (or to really work on many electronics projects).

i am about to build the 13.8V/5A power supply from the 2011 ARRL handbook (section 7.16.3). i am ordering all the hard to find parts right now. i've found pretty much everything i need except i am little unsure about the ac line filter. the article doesn't specify any details about the filter and i have never used one before.

would this be a suitable filter: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=390440056714

also could anyone recommend an inexpensive 120v-primary/20v secondary/5A transformer?

[KF1Z]

transformers here:

http://www.antekinc.com/gview.php?d[]=0

[ke7trp]

Get the type that has the IEEE AC power plug on it.  Or steal one from a computer power supply. They panel mount, have a filter and will take any standard Ieee power cable.

C

[WA1GFZ]

Antek is quality stuff
The line filter you show will work. The IEC socket from an old computer supply will give you a nice clean interface to a line cord.

[ssbothwell KJ6RSG]

thanks for the tips guys. i'll be assembling this thing some time next month when the parts arrive (thanks chinese ebay sellers!). i'll make a followup post with the finished supply at that point.