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Old 1st February 2012, 06:14 PM   #131
zsaudio is offline zsaudio  Europe
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Location: Hungary
Hello Rudi_Ratlos,

the psu board looks good too. I'm interested in that too.
Mounting the rectifiers onto the pcb maybe good idea but i will use external rectifiers because want to add more capacitance (I'm megalomaniac). But it's not an issue to modify the board for that.
I'm not in a hurry. I'm laying in my bed with broken leg so have time. (at least 3-4 weeks)
If there's nobody who wants the boards and can test it before me i take 2-2 pieces otherwise i wait for the second round.

Best Regards,
Zsolt
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Old 10th February 2012, 02:07 PM   #132
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Gentlemen,

I received the PCBs of METAL's and my layout of Mihai's FC-100 AMP today.
I have ordered 10 PCBs.

The components side:

Click the image to open in full size.

http://www.abload.de/img/joe0223ca9f.jpg

The solder side:

Click the image to open in full size.

http://www.abload.de/img/joe027mayoc.jpg

The quality and precision of these PCBs is extraordinary and flawless.

I have a special offer for the first two of you, who will join and "prototype" this PCB.

A propos "prototyping":
The PCB follows exactly Mihai's schematics.
I added a DC blocking capacitor on the frontend (which can be easily de-activated by means of a jumper) and a diode-rectifier section
on the backend (that can be bypassed as well), and I am absolutely sure that I did not do any layout-error.

My 1st offer is:

Click the image to open in full size.

http://www.abload.de/img/joe030w0bcd.jpg

- 2 FC-100 PCBs
- 12 matched (HFe, VBe, <5%) transistors NJL0281DG / NJL0302DG
- 12 Futaba MPC74 0R22 emitter resistors
- 2 Vishay MKP1839 1F capacitor
- 2 Vishay MKT1828 3.3F input capacitor

incl. wordlwide shipping for 80.

2nd offer:

- same as above but without emitter-resistors for 74.

Maybe somebody of you likes to "join the party".

Best regards - Rudi_Ratlos
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Old 10th February 2012, 03:24 PM   #133
AndrewT is offline AndrewT  Scotland
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Rudi,
your attachments still don't open.
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regards Andrew T.
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Old 10th February 2012, 03:47 PM   #134
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Quote:
Originally Posted by Rudi_Ratlos View Post
Gentlemen,

I received the PCBs of METAL's and my layout of Mihai's FC-100 AMP today.
I have ordered 10 PCBs.

The components side:

Click the image to open in full size.

http://www.abload.de/img/joe0223ca9f.jpg

The solder side:

Click the image to open in full size.

http://www.abload.de/img/joe027mayoc.jpg

The quality and precision of these PCBs is extraordinary and flawless.

I have a special offer for the first two of you, who will join and "prototype" this PCB.

A propos "prototyping":
The PCB follows exactly Mihai's schematics.
I added a DC blocking capacitor on the frontend (which can be easily de-activated by means of a jumper) and a diode-rectifier section
on the backend (that can be bypassed as well), and I am absolutely sure that I did not do any layout-error.

My 1st offer is:

Click the image to open in full size.

http://www.abload.de/img/joe030w0bcd.jpg

- 2 FC-100 PCBs
- 12 matched (HFe, VBe, <5%) transistors NJL0281DG / NJL0302DG
- 12 Futaba MPC74 0R22 emitter resistors
- 2 Vishay MKP1839 1F capacitor
- 2 Vishay MKT1828 3.3F input capacitor

incl. wordlwide shipping for 80.

2nd offer:

- same as above but without emitter-resistors for 74.

Maybe somebody of you likes to "join the party".

Best regards - Rudi_Ratlos
Rudi,
I have interest in offer one
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Old 10th February 2012, 03:54 PM   #135
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Andrew,

I will try again.

Aren't the PCBs beautiful?

Best regards - Rudi_Ratlos
Attached Images
File Type: jpg Joe 022.jpg (236.3 KB, 129 views)
File Type: jpg Joe 027.jpg (178.9 KB, 127 views)
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Old 10th February 2012, 09:51 PM   #136
zdr is offline zdr  Belgium
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I am tempted to buy them just to hang them on the wall
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Old 10th February 2012, 09:54 PM   #137
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thanks zdr, u'r most welcome!
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Old 11th February 2012, 05:16 PM   #138
RKH is offline RKH  United States
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Rudi,
I am interested in your current offer. If by 'prototyping' , you mean that you would like someone to build quickly and report results, then it is likely that I won't qualify. Too many projects at hand.

Also, will you be offering more boards down the road?

Thanks,
Ryan
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Lighten up while you still can ...
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Old 12th February 2012, 11:10 AM   #139
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Hi Rudi ,
I want to buy a kit to 80 euros. Can you send money through paypal?

Thanks.
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Old 12th February 2012, 02:01 PM   #140
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Location: Hamburg / Germany
Vitalie,

thank you very much for your PAYPAL-transfer.
I will send you the components of my offer #1 tomorrow.

(The same applies to you, Patrick).

My offer #2 is still open.

I am currently thinking about the mechanical implementation of this AMP.
I will use what I have at hands:

Click the image to open in full size.

http://www.abload.de/img/joe031znuaz.jpg

and like to install Mihai's shunt regulator and a speaker protection PCB (I will use a TRIAC - solution this time that will burn the fuse
in case of a DC / AMP defect, so that no relay will disturb the audio signal) on the heatsink as well.

I will keep you informed about my progress.

Best regards - Rudi
Attached Images
File Type: jpg Joe 031.jpg (175.0 KB, 121 views)
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