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Old 18th September 2003, 04:03 PM   #1
C3PO is offline C3PO  Philippines
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Default another amp schematic

hi guys, anyone have an idea for these amp? does anyone here tried to build it?
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Old 18th September 2003, 04:09 PM   #2
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It's a classic design, normally with good sound and performance
However it depends on what you will be using it for......
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Old 18th September 2003, 04:10 PM   #3
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I think you would have trouble to get the parts. This dates at least 25 years back, and the opamp and power transistors are obsolete. You may be able to find them, but no guaranteed availbility.

This doesn't mean that the amp itself is outdated as far as quality is concerned, just that you will have practical problems.

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Old 18th September 2003, 09:43 PM   #4
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Competent, but very old fashioned design. Kind of like an old Ford motor (pre 1953). You could build it, but why?
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Old 18th September 2003, 10:00 PM   #5
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Didn't Bose use this design in their first (high) power amp?
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Old 18th September 2003, 10:31 PM   #6
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Default Good ol' RCA......

Couldn't make a decent high-power PNP to save their life. Some might say the same for their NPNs.

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Old 19th September 2003, 03:23 AM   #7
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Default Hello!

I think I've seen that schematic before

Someone has already built that but I can't remember who

But I remember him say that it sound well though. I believe you have to find substitutes for the parts because they are not available anymore.

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Old 19th September 2003, 05:37 AM   #8
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I starts to believe that John Curl is a used car salesman...
Everything is turned into Volkswagon's, Ford's and other cars....
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Old 19th September 2003, 05:59 AM   #9
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I'm just waiting for him to start on his Lexus....

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Old 19th September 2003, 06:38 AM   #10
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interesting but I would love to see those transistors drive all that paralelled output<<?
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