Replace Radio Schack 3v transformer with this????

[Dragon1]

So I have one of those old electronics shops that sell old stuff and overstocks, "Chesters Electronics" in Kenosha, WI. I found this and want to replace the Radio Schack transformer with this. Is it going to work ok or do I have to wire something different? It's 6.3 v were the Radio Schack one is 3v. I thought I read something about Dumble having a voltage double on this transformer which I wouldnt need...
Cost about $13.00
Thanks in advance Brian
Sorry, my pictures spin 90degrees when I insert them into posts...

[dorrisant]

Do you have a schematic of what it is that you are replacing? Hard to tell without more clues.

If it is the standard Dumble relay supply, then yes - with modification to the circuit.

I've included a cropped image of #124 to show the connection. 6.3 v TX doubled with a 12 v regulator.

[Dragon1]

I'm replacing this, #124 low plate classic build

[dorrisant]

You will not need the doubler circuit, or you need a different TX.

[Dragon1]

Thank you, Brian

[dbharris]

If you already had boards built, couldn't you also use the center tap lead and one of the 6.3v leads? That would essentially turn it into a 3v transformer. Leave the remaining secondary lead floating like you would normally do with the CT.

-Dan

[martin manning]

This transformer will be fine. Which rectifier circuit is on your relay power supply board? Doubler or Full-Wave bridge? If you are using 12V relays, and it's the original doubler, use half of the secondary (6.3VAC). If it's a FWB, use the full secondary (12.6VAC).

[Dragon1]

I used this one,

[martin manning]

OK, full-wave bridge. Use the whole 12.6VAC and you should get around 18V DC input to the regulator. Plenty of headroom for 12V output.

[Dragon1]

Thank you all....
Brian