Can someone help me find the correct power transformer for a stereo tube pre-amp kit? The specs say: AC 180V-0-180V 2*AC 6V 30W
Attaching a photo of schematic as well.
Any information or advice will be appreciated. I don't know anything about power transformers, so i'd appreciate any advice everyone can give me!

 

This is about the closest I could find with a quick search:
http://www.mouser.com/Search/ProductDetail.aspx?qs=sGAEpiMZZMv4oUrzpPKU3L2j9JyvMp7OwhWZrWlJVQQ=
$43/ea, 190-0-190 and 6.3v secondaries. You'd need another small 6.3v transformer to power the dual diode (6Z4) tube's heater.

 

Thanks, SgtWookie.
Would this work? http://www.edcorusa.com/products/transformers/xpwr/xpwr105.html
Will i still need another 6v transformer then? Where can i find that at?

 

Yes, the transformer you found should work fine.

For the other 6.3v transformer, practically any 120v to 6.3v transformer will work, but get one with a fairly low current output - you won't need much.

Mouser or Digikey should have what you need in stock.

 

SgtWookie,
How about this transformer for the heater?
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=HM506-ND

 

Hi,

Hoffmanamps.com

Specialise in tube stuff

Andrew

 

Sgt Wookie,

Would this Hammond 262E6 transformer work for this heater??

http://www.mouser.com/Search/ProductDetail.aspx?qs=sGAEpiMZZMv4oUrzpPKU3AkibQaJ76sJBIeUyC2DVaY=

You said low amps, in what ranges would you suggest?

Thanks again.

 

The easiest way to get Vacuum tube stuff is to buy broken equipment from ebay and pawn shops. Very likely, most of the electrolytic capacitors are going to be dead, but you can acquire lots of useful high power parts, sockets, transformers, etc... Worth giving a shot if you can't find something in the right price range.

Another alternative which you can try, is to build a little switching power supply to jack up the voltage to a couple hundred (I've used this to power a bunch of "Nixie" tubes for a photo darkroom timer ).
If you need an output transformer for a power amp. though, you;ll need to go the pawn shop/ebay way, since most new trafs are too expensive imho.

And the 6v transformer you can probably get from Radio Shack, for the heater.
You can find exactly the specs the Vacuum tubes will require on their datasheets.

~mikeska