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Old 4th March 2005, 03:40 AM   #1
ble0t is offline ble0t  United States
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Default 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...
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Everything mounted...
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Boards are mounted upside-down...
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Enjoying some music...
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Old 4th March 2005, 03:53 AM   #2
jleaman is offline jleaman  Belgium
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Looks nice. I like your small psu for yur power switch .. got a schematic ?
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Old 4th March 2005, 01:57 PM   #3
ble0t is offline ble0t  United States
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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.
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Old 5th March 2005, 09:00 AM   #4
mAJORD is offline mAJORD  Australia
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nice. we'll need a p101 dedicated thread soon , theres more and more ppl making them . very happy with mine too.
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Old 5th March 2005, 01:55 PM   #5
AAK is offline AAK  United States
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Looks great. Where did you get the heatsinks? Thanks,

Al
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Old 6th March 2005, 04:25 AM   #6
ble0t is offline ble0t  United States
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Heatsinks are from Conrad (www.conradheatsinks.com). I would highly recommend them
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Old 6th March 2005, 12:43 PM   #7
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I like some of the Conrads. How was the shipping cost?
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Old 6th March 2005, 12:57 PM   #8
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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?
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Old 7th March 2005, 05:26 AM   #9
ble0t is offline ble0t  United States
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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.
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Old 7th March 2005, 05:44 AM   #10
Jean is offline Jean  United States
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Nice job ! Is that the old boards or new boards from Rod ?
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