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50 Free SYMEF PCBs

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#64
@Harrison,

1. Thank you very much for the recent mails and I am pleased that my boards are 'en route' to Scotland.

2. Same problem as above:

I cannot download the BoM on my Mac. All .pdf opening software comes up with 'damaged file' messages! Any ideas?
[It opens direct from your site, but again, will not save or print.]

Many thanks,

Brian
 
Last edited:
#67
brianco said:
@Harrison,

1. Thank you very much for the recent mails and I am pleased that my boards are 'en route' to Scotland.
Click to expand...
Thank you. Looking forward Brian. 🙂

brianco said:
2. Same problem as above:

I cannot download the BoM on my Mac. All .pdf opening software comes up with 'damaged file' messages! Any ideas?
[It opens direct from your site, but again, will not save or print.]

Many thanks,

Brian
Click to expand...
If the problem persists on the Mac let me know.

kind regards

Harrison.
 
#70
It is a pity that I have not discovered this thread earlier. I was ver pleased with the listening results of my first build of the SYMEF amplifier, and I would be very happy to built a second one, but I see I am to late to have a set of PCB v. II
Harrison, I will wait for your next project that you told us in your last post in the SYMEF thread.
I stll have not finish my 1DIFFQC project, due to a stupid failure I did. A couple of TIP 142 went to "heaven". Repairing was set on hold because of a "house project" (painting) before Christmas.
For the time I am finishing my variotrafo project. As soon as I am throuh with this, I will give 1DIFFQC a new try. I hope to come back with a short listening test to 1DIFFQC compared to SYMEF.

Eivind Stillingen
 

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#73
Liliya said:
It is a pity that I have not discovered this thread earlier. I was ver pleased with the listening results of my first build of the SYMEF amplifier, and I would be very happy to built a second one, but I see I am to late to have a set of PCB v. II
Harrison, I will wait for your next project that you told us in your last post in the SYMEF thread.
I stll have not finish my 1DIFFQC project, due to a stupid failure I did. A couple of TIP 142 went to "heaven". Repairing was set on hold because of a "house project" (painting) before Christmas.
For the time I am finishing my variotrafo project. As soon as I am throuh with this, I will give 1DIFFQC a new try. I hope to come back with a short listening test to 1DIFFQC compared to SYMEF.

Eivind Stillingen
Click to expand...

Looking forward Liliya, 😀

Thanks again, Harrison.
 
#74
Sorry for the fuss......I am running Fiefox19.0.2 - a beta test browser - and have now had similar problems with their new .pdf viewer. Save a .pdf and it gives a message saying "damaged file". [I'd just managed to get them to print when the ink ran out ... totally forgot to reorder - so it will be a few days before I receive some. Our local town is a one horse town and that died last year!.....beautiful countryside though.]
 
#77
OnAudio said:
TYPE 2

1. Place unpopulated PCB on heat-sink.
2. Use ink to mark the lead positions on the heat-sink.
3. Place transistors on heat sink with the pins bent straight up
4. Align the transistors leads with the ink marks
5. Use ink to mark the mounting holes of each transistor
6. Drill mounting holes
7. Mount transistors
8. Populate PCB
9. Place PCB over transistors
10. solder the transistors
Click to expand...

thank you for the explanation.
IMHO, this is not a practical way.

Omar
 
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