[poseidonsvoice]

Hi fellas,

In order to complement my Bolder SB3 w/Digital Enthusiast modifications, I built a power supply that puts out a fixed 5 volts.

Ingredients are as follows:

• Furutech IEC
• ACME fuse
• Hammond split bobbin transformer (model 166N10) - this unit minimizes the need for an electrostatic shield
• Hammond 60mH/2A choke (model 159ZC)
• Peter Daniel PS board
• MUR 3060 Hexfred Diodes (4)
• Jensen 10,000 uf /63V DC Four Pole Capacitors (2)
• Paul Hynes SR1MP shunt regulator
• Neutrik XLR
• VH Audio Copper wire
• ERS sheets & Soundcoat damping
• DIY Enclosures 0610 chassis
• Engraving by Front Panel Express

Please feel free to ask any questions/comments/criticisms. I tried to implement a Felix AC filtration unit as well, but it didn't fit in the enclosure.

Anand.

[Occam]

Very Nice! Now that is the way to use iron.....



Unlike the typical toroidal transformer, your spit bobbin EI power transformer, minimizes the capacitive coupling of noise from the primary to secondary. To some extent, your choice of power transformer (with its narrower bandwidth) minimizes the need for an ac conditioner. Horses for courses. And that nice differential choke certainly helps.

-Paul

[poseidonsvoice]

Very Nice! Now that is the way to use iron.....



Unlike the typical toroidal transformer, your spit bobbin EI power transformer, minimizes the capacitive coupling of noise from the primary to secondary. To some extent, your choice of power transformer (with its narrower bandwidth) minimizes the need for an ac conditioner. Horses for courses. And that nice differential choke certainly helps.

-Paul

That's precisely why I chose that transformer. I know I could *probably* improve it by using some fancy Lundahl perhaps...but I'm really not sure. With this design, I tried to maximize where I would tweak, namely the capacitors and Paul H's shunt regulator.

I'll be implementing something similar with my upcoming Sabre 32 dac and B² buffered preamplifier. These will be using your Felix AC conditioner internally.

And of course, it will be all topped off with Kaplan cords everywhere...

Your input is greatly appreciated and respected. 

Anand.