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ble0t 4th March 2005 02:40 AM

Pics of my ESP101
It's pretty much done, aside from the back panel (which is still on the drill press). I couldn't resist posting a few pics :D

I'm running with 42V rails using two MOSFET pairs to keep the heat down a bit. I suppose you could call it the 'medium power' version ;)

I settled with about 180mA bias and it has around 16mV offset on each channel. The sound beats the pants off of my gainclone...sound is very crisp and the bass is much tighter.

Thanks to Rod and everyone else who helped me in any way!

Testing the 1st channel...

Everything mounted...

Boards are mounted upside-down...

Enjoying some music...

jleaman 4th March 2005 02:53 AM

Looks nice. I like your small psu for yur power switch .. got a schematic ?

ble0t 4th March 2005 12:57 PM

It's actually a soft-start circuit based on ESP's project 39...I just made a second PCB to hold the transformer and some line filter components.

mAJORD 5th March 2005 08:00 AM

nice. we'll need a p101 dedicated thread soon , theres more and more ppl making them :) . very happy with mine too.

AAK 5th March 2005 12:55 PM

Looks great. Where did you get the heatsinks? Thanks,


ble0t 6th March 2005 03:25 AM

Heatsinks are from Conrad ( I would highly recommend them :cool:

BrianDonegan 6th March 2005 11:43 AM

I like some of the Conrads. How was the shipping cost?

jacco vermeulen 6th March 2005 11:57 AM

Nice touch with the acrylic plates, Moose.
Threading in alloy is quite easy, though.

Mind if i ask where you attached the rectifier blocks on?

ble0t 7th March 2005 04:26 AM

WorkingAtHome: The shipping is good if you order enough stuff i.e. ordering at least 4 heatsinks. Otherwise, the shipping might actually be more than your order :xeye:

Jacco: You're probably right about the threading...hindsight is 20/20 I suppose ;)

Given that I do have those nice pieces of acrylic there, I was thinking about possibly mounting some LEDs into them to add some glow to the vents instead of mounting a power LED in the front.

As for the rectifier blocks, they are mounted to a brass bar which is mounted on the same bolt as the one holding the toroid in place.

Jean 7th March 2005 04:44 AM

Nice job ! Is that the old boards or new boards from Rod ?

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