SemiSouth (marking) questions

[carsten.witt]

Hi all,

I take a closer look to my parts and saw that the markings are different ... are they real ore fake?

Markings are:
1-8 - SemiSouth - E120R100 - T1034 - Philipines & random number in the holes (are from a trusted diyaudio member from a GB)
9 - SemiSouth - SJEP120R100A - T002A1103 - Philipines & random number in the holes
10 - SemiSouth - SJEP120R100A - T002A - Philipines & random number in the holes
11 - SemiSouth - SJEP120B100A - P101B1220 - PH - random number & random number in the holes => only etched marking
12 - SemiSouth - SJEP120R100A - T036A1135 - Philipines & random number in the holes
13 - SemiSouth - E120R125 - P0924 - random number & random letter in the holes - thicker marking
14 - SemiSouth - E120R125 - P0924 - random number & random letter in the holes - thicker marking
15 - SemiSouth - E120R125 - P0924 - random number & random letter in the holes - thicker marking
16 - SemiSouth - E120R125 - P0924 - random number & random letter in the holes - thicker marking

#11 has bigger notches as the other ones and what is wrong in the trace for #14 & #15 (red circle)




Thanks and regards ...Carsten

 

[Dennis Hui]

There are definitely genuine Semisouths with etched markings.

 

[adason]

...and if not, you can send them to ZM for proper disposal 🙂
you have to pay shipping though

what are you building? F1J? (amazing amp)

 

[carsten.witt]

Thanks all,
@adason i have build a J2 ... today my favourite amp. ;-)
I Think you mean F2J .... F1J when I remember right only with IRF?!

 

[carsten.witt]

Ok found it at the "F2 Page", didn't notice that. 🙂

 

[MARCUS SOLOMON]

If they're counterfeit you will get VGS over 2V@1A !

 

[nr12]

Hi Carsten, my 100A look like this:

https://www.diyaudio.com/community/threads/sjep120r100-faking-from-china.224122/#post-3254361

Ordered from Farnell back then.

Ulf

 

[nr12]

And here is the document "Is it Semisouth?":
https://www.diyaudio.com/community/threads/semisouth-boiler-room.229241/

 

[carsten.witt]

@nr12 many thanks for the picture and the doc (good night reading)! 🙂