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Old 31st May 2011, 11:59 AM   #1841
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Quote:
Originally Posted by Mooly View Post
Thats good... did you use Diptrace to do the PCB by any chance ?

Very neat
Thanks

The layout is done in Eagle, DRC was set on min 10mil between tracks.
I misread my drillbits and drilled most of the holes with a .9mm drill when I thought I was using a .6mm one...

I tried getting the board under 5x5cm(seeedstudio, 9.90$ for 10 pieces) but there was no way that was happening. Not that I would order it anyway, I just enjoy the challenge. Finished design will be a bit bigger, with mounting holes and horizontal resistors.

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Kolbjørn
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Old 31st May 2011, 03:27 PM   #1842
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Hi Cheers

can you uploade the .LAY file of Nmos350 Recommended Power Supply ?

i want use that circuit for my nmos200 circuit and i need to change it.

sorry for my English

Thanks

bye
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Old 4th June 2011, 03:54 PM   #1843
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Hi,

Last year i finished my new amp.
It is a shiny 2x18 watt retro influenced solid state amp.
Every transistor is from the late 60's but the circuit is more like the blameless amp from Douglas Self.
It has a build in RIAA correction amplifier for Vinyl playback and 2 additional inputs for CD or Ipod etc.
The whole thing is designed and simulated in Multisim 2001 and build on experimental (vero board) print that has been painted Black.

Works like a charm and sounds super smooth, I really like it.
And the modest 2x18 watt is more than enough for me.

Hope you guys like it.
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Old 4th June 2011, 04:53 PM   #1844
Mooly is offline Mooly  United Kingdom
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Very neatly done
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Old 18th June 2011, 12:42 PM   #1845
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No picture, but bought an Onkyo push pull with WRAT technology, model # TX -NR3008, hasn't been shipped yet and last one available unopened box. I also bought a 15 amp powercenter and I need to replace wiring and put a 20 amp fuse for high amp digital circuitry protection and a 20 amp fuse for high amp analog. I lost old username, etc. I've been sick for 4 years and my computer was destroyed by people I thought were friends, or else I'd be still posting with old username, etc. Please, I blew my B&K AVR507 updated to V3 and everything is explained under solid-state, but haven't been able to have post's posted, because a moderator needs to see if I'm a home theater nerd, or a for real DIY audiophile junkie, which my old posts would prove, so I understand and need to go to doctor's appt, so I'm posting and reposting as to let mod see I'm for real, but need to go. Thanks for your time.
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Old 25th June 2011, 11:25 AM   #1846
masood is offline masood  India
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dear sir,can some one display the nico ras amplifier 2sk1058 and 2sj162 based amplifier picture gallery ,thanking you
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Old 29th June 2011, 01:34 PM   #1847
osscar is online now osscar  Latvia
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This is my second Leach amp -just finished.
Sounds good. Some of internal wires has not yet been arranged and enclosure cleaning still needed.
DC offset - 16mV and 3mV. 20Khz square wave you can see in photo.
Transformer 350VA. 6x4700uf per rail. No hum - measured about 0.05-0.08mV without shorted inputs.
Transistors from original article. bias- 100mA.

Click the image to open in full size.

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Click the image to open in full size.

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Old 29th June 2011, 03:36 PM   #1848
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Quote:
Sounds good. Some of internal wires has not yet been arranged and enclosure cleaning still needed.
DC offset - 16mV and 3mV. 20Khz square wave you can see in photo.
Transformer 350VA. 6x4700uf per rail. No hum - measured about 0.05-0.08mV without shorted inputs.
Transistors from original article. bias- 100mA.
Awesome leach build , MUCH better than most. Triple OP is the only way to go, took me over 2 years to realize this.

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Old 29th June 2011, 03:41 PM   #1849
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This is my second Leach amp -just finished.
Sounds good. Some of internal wires has not yet been arranged and enclosure cleaning still needed.

Click the image to open in full size.
Chassis from Russian amp

Regards zeoN_Rider
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Old 29th June 2011, 03:50 PM   #1850
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very clean and well thought out osscar , good work.
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