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Tnx Prasi for nice board, in NP original board R35 was omitted, maybe you can consider the input C to be film cap - 2uf2 or 3uf3? and maybe use some to 126 for bias generator ? nice board anyway.tnx.
Last edited:
Tnx Prasi for nice board, in NP original board R35 was omitted, maybe you can consider the input C to be film cap - 2uf2 or 3uf3? and maybe use some to 126 for bias generator ? nice board anyway.tnx.
That would be really great. Both suggestions... And maybe allow the 100uF-caps to be 12,5mm in diameter so that they could be my favorites (UBX as polarized and UES or RFS in feedback). Thanks for the board anyway 🙂!
Edit says they're in 13mm already as it's printed on the board. Sorry, I should have put my glasses on 😀.
Four pads for decoupling-caps as in the original version would also be nice. The board is only ~20cm long by now. There is space for something more in the dissipante-cases 😎.
Thank you all, would a BD139 be adequate in the bias generator place from voltage point of view? OR do we need to use something like KSC part?
Here are 2 versions with 4 caps and 2 caps.
In both also included upto 15mm pitch film cap and TO-126 transistor for bias.
I will post gerbers and pdfs here if there are no more comments.
regards
prasi
In both also included upto 15mm pitch film cap and TO-126 transistor for bias.
I will post gerbers and pdfs here if there are no more comments.
regards
prasi
Attachments
Last edited:
Thanks osscar,
here are all the files...
regards
prasi
here are all the files...
regards
prasi
Attachments
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gerbers-AB-100 TO-247-R1-4CAPS_2020-04-18.zip672.6 KB · Views: 459
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gerbers-AB-100 TO-247-R1-2CAPS_2020-04-18.zip640.1 KB · Views: 428
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AB-100 TO-247-R1-4CAPS-top-silk.pdf120.8 KB · Views: 487
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AB-100 TO-247-R1-4CAPS-stuffing guide.pdf184.7 KB · Views: 461
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AB-100 TO-247-R1-4CAPS-sch.pdf70.1 KB · Views: 473
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AB-100 TO-247-R1-4CAPS-bot-cu.pdf65.4 KB · Views: 446
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AB-100 TO-247-R1-2CAPS-top-silk.pdf116.1 KB · Views: 455
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AB-100 TO-247-R1-2CAPS-stuffing guide.pdf178.3 KB · Views: 468
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AB-100 TO-247-R1-2CAPS-sch.pdf67 KB · Views: 562
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AB-100 TO-247-R1-2CAPS-bot-cu.pdf63.7 KB · Views: 486
BPR56N 1 Ohm?
Anybody know of a source for BPR56N 1 Ohm resistors? Digikey and Mouser don't seem to carry them and Chinese suppliers on eBay only seem to have up to .5 Ohm. Lots of examples of .1, .22, .33, etc.
Anybody know of a source for BPR56N 1 Ohm resistors? Digikey and Mouser don't seem to carry them and Chinese suppliers on eBay only seem to have up to .5 Ohm. Lots of examples of .1, .22, .33, etc.
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