Transformer again...

Okay, so Ive sortred the wires out but I need abit more advice.

This is going to be powering my diy phono. Each channel on the phono has its own regulators so would it be beneficial to use the two 12v windings to supply each channel? Or am I just best using one of the 12v windings and keeping it simple? Whats your recommendations for this transformer????

 

Hi,

Depends, are both channels otherwise also completely seperate? If so seperating both supplies and thus the grounds is a good idea. If the grounds are not seperate generating seperate supplies may still be a good idea. Remeber, current flows in loops and the less currents share loops with each other the less problems you have.

Ciao T

 

Both channels are seperate. Originally everything shared the same ground but Ive split them all and will star them. I had the psu running last night but one of the rectifier bridge's I used popped, I can only think it was a dodgy component. I know using two seperate supplies will mean 2 leads from the psu to the phono but Im certain I'll go that way.

Thanks T

 

Oh, by the way T

on my other subject of pcb's what do you think of using solder islands made from coppler clad board?? Ive seen a couple of examples of people sticking these too the copper board as you advised and soldering accordingly.

 

Hi,

Then keep them that way.

You could just use 5-Pin DIn or XLR connectors and Cat-5 Network cables to carry the power, easy, efficient and Cat5 comes in many fetching colours too... ;-)

You can do that. As said, I prefer to use a heavy copper or brass plate and drill holes into which I "sink down" the transistors (in closely coupled pairs). I don't know what circuit you are building, so it's hard to be more specific.

Ciao T

 

Thanks T, the circuit is a simple phono I found and Ive just tinkered. Ive since found one called el cheapo phono which I believe you may know a thing or two about.......My mate wants a phono so I might have a go at that next.

Ive plenty of Cat 5 so I'll do what you've said, would you recommend one wire per connection or keeping them doubled as they are?

 

Hi,

Guilty as charged.

I woulde use the twisted pairs if neccesary doubled up, but making sure to use one wire in each pair for ground and the other for the Supply voltage, that makes sure you get the lowest inductance.

Ciao T

 

I have made a phono amp with two separate PSU's. Just add 18-24 VAC

http://home.swipnet.se/~w-50719/hifi/qsxm3

Which regulated voltage do you need and how much current?