Pics of my ESP101

ble0t · 4th March 2005, 02:40 AM

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

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,

Al

ble0t · 6th March 2005, 03:25 AM

Heatsinks are from Conrad (www.conradheatsinks.com). I would highly recommend them

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

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 ?

4th March 2005, 02:40 AM	#1
ble0t diyAudio Member Join Date: May 2004 Location: Milwaukee, WI	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 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... __________________ gravity always wins

4th March 2005, 12:57 PM	#3
ble0t diyAudio Member Join Date: May 2004 Location: Milwaukee, WI	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. __________________ gravity always wins

6th March 2005, 03:25 AM	#6
ble0t diyAudio Member Join Date: May 2004 Location: Milwaukee, WI	Heatsinks are from Conrad (www.conradheatsinks.com). I would highly recommend them __________________ gravity always wins

6th March 2005, 11:43 AM	#7
BrianDonegan diyAudio Member Join Date: Dec 2004 Location: Rock Ridge	I like some of the Conrads. How was the shipping cost? __________________ Twisted Pear Audio

6th March 2005, 11:57 AM	#8
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	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? __________________ Looks like Sponge Bob has killed another thread.


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4th March 2005, 02:53 AM	#2
jleaman Banned Join Date: Apr 2002	Looks nice. I like your small psu for yur power switch .. got a schematic ?

5th March 2005, 08:00 AM	#4
mAJORD diyAudio Member Join Date: Apr 2004 Location: Brisbane Australia	nice. we'll need a p101 dedicated thread soon , theres more and more ppl making them . very happy with mine too.

5th March 2005, 12:55 PM	#5
AAK diyAudio Member Join Date: Jul 2004 Location: Florida	Looks great. Where did you get the heatsinks? Thanks, Al

7th March 2005, 04:26 AM	#9
ble0t diyAudio Member Join Date: May 2004 Location: Milwaukee, WI	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 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. __________________ gravity always wins

7th March 2005, 04:44 AM	#10
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	Nice job ! Is that the old boards or new boards from Rod ? __________________ left lane is for passing, slower traffic keep right please.

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