No, the SMD resistors are rated for 0.125W. That should be enough, sorry. Otherwise the layout is not perfect, but it works. The input capacitor is a ceramic-type with 4u7, which is probably not good for the sound (?). Here you can take an electrolytic capacitor, if you want to have SMD.
I think the circuit is good for further experiments. Since I already have a complete PeeCeeBee, I probably will not continue to work. Was really just for fun and it is really not my pleasure to solder such small components 🙂.
regards Olaf
Mind if I call it the Mutant X-PeeCeeBee?
That thing looks jjjust........................... 😎😱
Please review and upload full PDFs.
Kudos for making it sing and Big thanks for sharing!
shaan
Hi, thank you. Right, it already looks strange for an audio amplifier 🙄.
All PDFs are uploaded. The wiring diagram is your original.
If someone needs something else, just let me know.
regards Olaf
All PDFs are uploaded. The wiring diagram is your original.
If someone needs something else, just let me know.
regards Olaf
Hi John, mind if you can share your PCB artwork? I will do a second iteration of my PeeCeeBee amp. Thanks in advance. 🙂
Hi olafk.
Please upload the PDFs in a new post with board dimensions in mm and/or inches, quoted in the post. This will help potential builders make a pair or more with error free component matching/placing. I can see there's future for this design.
Thanks again.
shaan
Hi, here are the files as desired 🙂
PeeCeeBee_Shaan_SMD_Details.pdf: component view for the drilling of the heat sink
PeeCeeBee_Shaan_SMD_Details_big.pdf: the same only larger for placing
PeeCeeBee_Shaan_SMD_copper.pdf: TopView for etching
PeeCeeBee_Shaan_SMD_copper_mirror.pdf: TopView mirrored for etching
a few photos
Ok, have fun.
regards
Olaf
edit: Size is 50x55 mm
Attachments
Oh, sorry. On Silk you can see the Type of the drivers. The 340 should be the BD140 and the 350 should be the BD139.
regards Olaf
regards Olaf
Hi Olaf. 
Link added to first post. Thanks a LOT for the files and your contribution to the community.
Happy listening.
shaan
Link added to first post. Thanks a LOT for the files and your contribution to the community.
Happy listening.
shaan
hello, i use peeceebee with evil cap multiplier. by mistake the multiplier has momentarily supplied only -1.6v on both sides. the positive voltage meanwhile was 32v. the output read 1.0v dc offset. i revert everything and zobel resistors burn. the dc offset is no more and the sound is fine but zobel resistor keeps burning. which component could have gone bad? i have already replaced all the transistors on cap multiplier. i should replace bd140/139 on peeceebee? thanks for the help.
zobel no burn if no input connected.
zobel no burn if no input connected.
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Hi Donovas ...
use 22pF - 47pF comp caps on it ...
sometimes it must be used ...
I also use 22pF on my BD139 - 140
it is for safety, without it I thought it was okay ...
but I have burn sonme BD's when try it 😀
Now with 22pF they are singing everyday here 🙂
Regards
use 22pF - 47pF comp caps on it ...
sometimes it must be used ...
I also use 22pF on my BD139 - 140
it is for safety, without it I thought it was okay ...
but I have burn sonme BD's when try it 😀
Now with 22pF they are singing everyday here 🙂
Regards
thank you i try tomorrow. but my older builds ok without. this one suffer heavy voltage drop before testing 🙁
