ZM, I need to order some multi colored cooper wire for this project, you know for all the interconnects, etc. what gauge can the holes on the PCBs handle, 14, 16, 18?
In general what gauges does everybody use?
Tanks,
Alex
It's a compromise between what you want and what you get.
I bought a batch of 40 pulls (used) from Ali and managed to get 3.5 sets of 2 x (1 driver + 3 outputs), with a Vbe match < 1.5% and a Hfe match < 5%. The .5 set (light blue) is because I ran out of suitable driver, so, the Hfe match is off; the Vbe match is still good though. Anyway, 2 sets is all I need.
Interesting to note: in the world of semiconductors, sexual equality doesn't exist, and the PNP's/P-channel's always perform better.
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It's a compromise between what you want and what you get.
I bought a batch of 40 pulls (used) from Ali and managed to get 3.5 sets of 2 x (1 driver + 3 outputs), with a Vbe match < 1.5% and a Hfe match < 5%. The .5 set (light blue) is because I ran out of suitable driver, so, the Hfe match is off; the Vbe match is still good though. Anyway, 2 sets is all I need.
Interesting to note: in the world of semiconductors, sexual equality doesn't exist, and the PNP's/P-channel's always perform better.
Ah I see. I was looking at 1% tolerance on the Vbe and 10% on the Hfe so I’ll tighten up the Hfe tolerance. Thank you
