Bo Hansen DI layout

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BC560C and BC550C

and many others small signal BJT transistors, these are just a few

BC550C = BC550B, BC549B/C, BC548B/C, BC547B/C, BC414B/C, BC337-25/40, BC237B/C, BC184B/C, 2N3391A, 2N3904, 2N4401, 2N5088, 2N5210, MPSA18, 2N3707, 2SC1775-AE, 2SC1815-GR/BL, 2SC2240-GR/BL

BC560C = BC560B, BC559B/C, BC558B/C, BC557B/C, BC416B/C, BC327-25/40, BC307B/C, BC214B/C, 2N3906, 2N4403, 2N5087, 2N3703, 2N4058, 2SA872-AE, 2SA1015-GR/BL, 2SA970-GR/BL
 
BC560C and BC550C

Your post came at the perfect time, I was just about to start soldering. Yes, I mistakenly thought I had read that the two are interchangeable but I don't believe this to be the case in reality. One is a PNP and the other is an NPN

Oh well, one more part to order I guess and then I can get down to building this DI :).

No doubt this post saved me a few hours in troubleshooting time.

Thanks.
 
and many others small signal BJT transistors, these are just a few
Of course. Just wanted to make sure they don't put two of the same transistor.
Your post came at the perfect time, I was just about to start soldering. Yes, I mistakenly thought I had read that the two are interchangeable but I don't believe this to be the case in reality. One is a PNP and the other is an NPN
Exactly. I've seen that mistake before, so I replied as soon as I saw your summary.
It's good that you edited the original post.
No doubt this post saved me a few hours in troubleshooting time.

Thanks.
Good luck with your build!
 
How much amplification would you get if you swapped the NPN and PNP (using BC560C and BC550C for an example, obviously the collectors to emitters as well)?
 
This year I've been in a few situations where I would have liked a Stereo Bo Hansén DI. As small as possible, and with an optional external PSU if there is no Phantom power available at the venue.
So for Christmas, I did this present for myself:

00DEE1F2-95CE-4378-A49B-877D6ACC366E.JPG

Happy new year everyone, and thank you @Bo Hansen for this fantastic sounding DI Box.
 
I made theese a couple of years ago and been using them at live gigs (bc (before covid)) . Really cool sound on acc.
 

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