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C3PO 18th September 2003 05:03 PM

another amp schematic
 
2 Attachment(s)
hi guys, anyone have an idea for these amp? does anyone here tried to build it?

Jan Dupont 18th September 2003 05:09 PM

It's a classic design, normally with good sound and performance:)
However it depends on what you will be using it for......

jan.didden 18th September 2003 05:10 PM

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This doesn't mean that the amp itself is outdated as far as quality is concerned, just that you will have practical problems.

Jan Didden

john curl 18th September 2003 10:43 PM

Competent, but very old fashioned design. Kind of like an old Ford motor (pre 1953). You could build it, but why?

jam 18th September 2003 11:00 PM

Didn't Bose use this design in their first (high) power amp?

Jocko Homo 18th September 2003 11:31 PM

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

Jocko

JojoD818 19th September 2003 04:23 AM

Hello!
 
I think I've seen that schematic before :scratch:

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.

JojoD

Jan Dupont 19th September 2003 06:37 AM

I starts to believe that John Curl is a used car salesman...
Everything is turned into Volkswagon\'s, Ford\'s and other cars....
:scratch: :D

jan.didden 19th September 2003 06:59 AM

I\'m just waiting for him to start on his Lexus....:o

Jan Didden

JOE DIRT® 19th September 2003 07:38 AM

interesting but I would love to see those transistors drive all that paralelled output<<?


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