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Old 15th June 2005, 04:39 AM   #1
AAK is offline AAK  United States
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Default my 60 watt amplifier

Hi folks. Well I'm back with a new project. This time it's a 60 watt amplifier targeted for either a six or eight channel surround sound amplifier for my home. The design is very similar to my 100 watt amp except that I'm only using two output transistors, and I eliminated the DC protection circuit which I'll do off board. The board measures 2.8"x5.2" and for it's size and power I'm still an awe after a full day of listening how great this little amp sounds. Especially it's low end command. I had to get up a couple times during to the day just to make sure i was switched to it, and not one of my bigger amps. Here's a couple pics.

Best reagrds,

Al
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Old 15th June 2005, 04:42 AM   #2
AAK is offline AAK  United States
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Pic 2.
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Old 15th June 2005, 04:44 AM   #3
AAK is offline AAK  United States
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Pic 1 again.
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Old 15th June 2005, 05:14 AM   #4
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็Hi AAK,
It's cool.
Can you post a schematic and how about sound.


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Old 15th June 2005, 01:45 PM   #5
AAK is offline AAK  United States
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Hi PapaNohn,

Don't have a schematic at the moment but if you look the schematic below and remove two output transistors let say Q1, Q4 and connecting resistors, the short circuit protection, and add a 220 ohm resistor in series with C21 in the NFB network you have my 60 watt amp.

All I need now is to build a few more modules which I should have done within the next two weeks when the new boards arrive, and a surround sound processor which I'm currently designing using crystal's CS42528 surround-sound CODEC.

In case your interested here's the thread I created for my 100 watt amp last month.

Yet more new old pictures

Best regards,

Al
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Old 15th June 2005, 01:48 PM   #6
AAK is offline AAK  United States
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Ops, i forgot the schematic. Here it is.
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Old 15th June 2005, 01:59 PM   #7
AAK is offline AAK  United States
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Ops, wrong thread. Sorry Nelson. Boy, I need some coffee. Here's the right one.

My first solid state amp
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