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Old 10th June 2004, 04:16 PM   #1
markp is offline markp  United States
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Default My amp design schematic

Here is a copy of the basic amp design I threw together and use with fantastic results. I have left out the part values so the DIYer can use it to learn a little too. If done right it is stable into almost any load and is one of the best sounding amps I have ever heard(or not heard! ) You can use voltages up to about 55-60v with no problem as long as you have enough output transistors for the load you are going into. Play with it and see what you get. I'm sure you'll be pleasantly suprised with it. Good luck!
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Old 10th June 2004, 04:38 PM   #2
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The schematic isn't readable.
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Old 10th June 2004, 05:03 PM   #3
markp is offline markp  United States
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Sorry about the image quality, I'll get a better copy up today.
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Old 10th June 2004, 05:36 PM   #4
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Why didn't you put a readable copy up in the first place?
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Old 10th June 2004, 06:04 PM   #5
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Default Re: My amp design schematic

Quote:
Originally posted by markp
Here is a copy of the basic amp design I threw together and use with fantastic results. I have left out the part values so the DIYer can use it to learn a little too......
How very kind and altruistic.

A lovely and visually symmetrical schematic. Complementry LTPs fed by CCSs to complementry Vas(s) with a amplified diode Vbe betwixt and between to emmitter folowers.

So how do you adjust output offset? Are the non-inverting complementry LTPs base currents so well matched that you don't need a input cap? No drivers that I can see, so how many of those "multiple ouput pairs" can you drive as is? (I can't discern the ouput trans, are they Darlingtons?)
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Old 10th June 2004, 06:11 PM   #6
sam9 is offline sam9  United States
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What is a fantastic result?
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Old 10th June 2004, 07:31 PM   #7
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Unhappy schematic

Hi , This is a negative image but the resolution is really bad!
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Old 10th June 2004, 08:00 PM   #8
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Why is the schematic drawn in such a bizzare way?
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Old 10th June 2004, 08:00 PM   #9
markp is offline markp  United States
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Quote:
Originally posted by Bill Fitzpatrick
Why didn't you put a readable copy up in the first place?
Because, I can read my copy.
I'm not trying to be God here, I just thought some people would like a place to start learning something about diyaudio rather than just building without doing any calculation or experimentation. If this is not you then bug off, if it is then enjoy your learning. There are things that are meant to be figured out rather than just shoved at you.
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Old 10th June 2004, 08:01 PM   #10
markp is offline markp  United States
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Quote:
Originally posted by Richard C
Why is the schematic drawn in such a bizzare way?
It is from AutoCAD which does not import directly into anything friendly to posting.
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