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WTB: Amp Camp #1 PCB

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#25
Well done, Sachin, I appreciate very much!

This is how the PCB shall eventually look like (see attached image).
I use Nichicon Gold / 10 µF for C3, MPC7x 5W resistors and a DELL PA10 / 19.5VAC - 4.6A LAPTOP PSU.

I am wishing you and everybody else a successful build - enjoy - Rudi
 

Attachments

  • ACA#1 008.jpg
    ACA#1 008.jpg
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#27
In case that anyone of you will use the same heatsinks, ..., that I used for my ACA#1: I will offer him
my spare wooden front - plate for 1€ + 3.45€ (world-wide shipping).

P.S.: Yes: I am a carpenter (LoL) 🙂 and you will never again have a such pretty front-plate like this one.
 

Attachments

  • LAGB 006.jpg
    LAGB 006.jpg
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Last edited:
#30
Yes really nice piece of wood you have there. I plan on monoblocks and using 2 aluminum lawnmower heads for heatsinks. Might use motorcycle heads since ACA is intended to replace my garage system one day. But things have been known to change...
 
#35
Rudi_Ratlos said:
Sachin, find attached the Gerber files and the schematics that I have used.
The PCB is single-sided; the layout is proven and completely routed.
I am using MPC74-type resistors as "drain/source" resistors.
Please offer your PCBs to MeTarzan-YouJane, to MORTRON, to ... as well.

Best regards - Rudi_Ratlos
Click to expand...

This schimantic is little different from the original circuit diagram. I am having this PCB now.

Here the top end of the pot is connected to output capacitor and meeting point of R1, R2 , R3, R4 and not connecting to ztx450 at all. But in original circuit, it is connected to meet R3,R4 and emitter of ztx450.

I was looking to add 6w mod of 2.21k resrstor but found this PCB not in line with the original circuit and got confused.
Please help.
 
#36
sarathssca said:
This schimantic is little different from the original circuit diagram. I am having this PCB now.

Here the top end of the pot is connected to output capacitor and meeting point of R1, R2 , R3, R4 and not connecting to ztx450 at all. But in original circuit, it is connected to meet R3,R4 and emitter of ztx450.

I was looking to add 6w mod of 2.21k resrstor but found this PCB not in line with the original circuit and got confused.
Please help.
Click to expand...


Its more than a year since previous post! has anyone built this version of ACA as per post #9 ??
 
#39
@Rudi_Ratlos

Could you possibly tell me pls, based on your schematic, what is the max voltage this amplifeir would be able to handle? Im planning on etching my own boards using the iron on method. I already have the prints done and will be etching this evening. Im just having a problem finding a power supply to run two of these modules in one chassis.

PS: thank you for the effort you put in, this is exactly what I wanted.
Cedric
 
#40
Rudi_Ratlos said:
Sachin, find attached the Gerber files and the schematics that I have used.
The PCB is single-sided; the layout is proven and completely routed.
I am using MPC74-type resistors as "drain/source" resistors.
Please offer your PCBs to MeTarzan-YouJane, to MORTRON, to ... as well.

Best regards - Rudi_Ratlos
Click to expand...


Hi guys

What program to use to open the Gerber files? And if I do the etching, then so I have to mirror this image still



Rudi_Ratlos said:
The Gerber-files above include a modification to reflect the correct orientation of the ZTX450 on the silkscreen.

Best regards - Rudi_Ratlos
Click to expand...
 
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