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Chip Amps Amplifiers based on integrated circuits

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Old 29th October 2006, 06:15 PM   #181
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" ... .01uf to .1uf caps are often used on each diode ..."

Also a good reason you don't notice any difference between "fast recovery" and "regular" diodes ... the poly caps are "covering up" any perceived or real advantage of using faster switching diodes ... making the need for "faster" diodes unnecessary.

Good show.
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Old 3rd November 2006, 12:38 AM   #182
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This is my attempt at a chip amp.
The boards are form audio sector.
The chassis is AIG
I added some poer supply caps
The connectors are Cardas
The lid is 6mm coated glass
Hammond trans
corcom line filter with fuse

Thank you,
John
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Old 3rd November 2006, 12:40 AM   #183
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Here is another view.
John
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Old 3rd November 2006, 12:41 AM   #184
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And another
John
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Old 3rd November 2006, 08:45 AM   #185
Mick_F is offline Mick_F  Germany
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Well done, John! Congratulations.

Mick
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No statement here.
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Old 3rd November 2006, 09:35 AM   #186
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Thank you mick!
I really had fun with the amp. I'm enjoying the music as well. I'm currently working on a p to p LM3876 amp and using carbon resistors throught. I'm hoping to hear a difference and be able to compare the two amps form the same source and the same speakers. I have read about differenct components sounding different, so I would like to experience it.
john
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Old 3rd November 2006, 01:54 PM   #187
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John, that's really nice -- and having the heatsinks where you located them keeps some of the trafo radiation away from the chips -- a good idea.
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Old 3rd November 2006, 05:06 PM   #188
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A very clever layout ... Nice work!

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Old 5th November 2006, 10:08 AM   #189
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Default first amp

hi!

this is my first amp. i built it mostly out of "intuition", i knew nearly nothing about designing a case or how to get the electronics right. so the outcome is a bit chaotic, but it works fine and i like the sort of rustic look.
i received great help from this forum when i was in trouble with designing the chip boards, thx to spittinllama , jaudio and the others!
here´s the case without inner life:
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Old 5th November 2006, 10:09 AM   #190
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Default first amp II

now here´s the end product, and a part of my desk after the final wiring session^^
greetz
jonas
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