100W Ultimate Fidelity Amplifier

Apex D14

Thanks for the diagram. plays better than TDA 7294.
 

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Sorry I don't understand here. What I need is a pair bc546 as input, and I have to match them, right? I don't need no bc556 in this Ax11. Do I miss anything. Newbie naive question again.

Yes you don't need bc556 and Yes you need to match, to do this i suggest to take note the tex notification carefully, specially the type of fonts being used on the component to ensure they all same, meaning same manufacturer,same specs etc..
 
Yes you don't need bc556 and Yes you need to match, to do this i suggest to take note the tex notification carefully, specially the type of fonts being used on the component to ensure they all same, meaning same manufacturer,same specs etc..

Willy,
Big Thanks.
I use your PCB for my built. There are couple spots I need your comment.
1. As of design, there is a 680 ohm series with 100uf to ground. A 2.2k is in your PCB instead.
2. The bottom bc546 with 180 ohm for b-, but is supposed to be 220 ohm on design.
Can I just simply follow the value on your PCB, the 180 ohm n 2.2 k.
Eh...how Big a fuse for the board?
Albert
 
Willy,
Big Thanks.
I use your PCB for my built. There are couple spots I need your comment.
1. As of design, there is a 680 ohm series with 100uf to ground. A 2.2k is in your PCB instead.
2. The bottom bc546 with 180 ohm for b-, but is supposed to be 220 ohm on design.
Can I just simply follow the value on your PCB, the 180 ohm n 2.2 k.
Eh...how Big a fuse for the board?
Albert

Not sure if i got you right, can you note and post the schematic? fuse holder size is 5x20mm.
 
Hi, this looks nice, but if I may put my 2 cents in: is it a good thing to have that ground all around the board in a closed loop that way? This is not a ground plane and creating a ground loop could cause some issues...

Sorry for butting in, but I thought I would bring this up, if this can be debated...

Hello, don't be sorry friend... I appreciate every comments to improve the design.

Would you mind to state what would be the possible issue of the currently design to improve??

Thanks for the inputs...
 
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