F5 layout

[chermann]

awesome PRASI !!!. thank you!!

 

[DIYHarry]

thanks Prasi, you are the best, I ordered immediately some

 

[chermann]

no...what is the F5m

have you see the new F5m ?

nope....i find nothing.....

 

[nicoch58]

at BAF here the F6m little difference vs R2 more like the first , no pic of F5m maybe soon

 

[chermann]

Thx

 

[DIYHarry]

Getting Stress .. so many Project 🥹🥹 2oz cu.....

 

[prasi]

Wow nice enig pcbs

 

[DIYHarry]

Thanks again Prasi for your work.
for me it is christmas time😁 ~140€ for 10pcs. in 6 days is ok for me

 

[gsrchrisu]

What are the values for C3-C8?

 

[DIYHarry]

I guess, mixing small Elko 1uF and 1000uF and MKP 100nF could be a start?

 

[e_fortier]

What are the values for C3-C8?

See post 5 and 7, these caps are not in the original design.

 

[gsrchrisu]

Yes of course, what values are you suggesting? Can one just leave them out? I searched those posts you mentioned. DIYHarry suggested 1000uF.

 

[e_fortier]

Hi
I’m not suggesting any value, they may not be needed.

 

[prasi]

be a FAB... use 220uF to 1000uF ... its got the correct current return path if you connect spk- here....
dont use a 100nF or 1uF poly cap for decoupling.....

 

[prasi]

voltage rating of cap to be atleat 10V higher than supply... say 35V caps atleat

 

[prasi]

read bespav posts..
dont use my pcb withot the decoupling caps, inspite of advice otherwise...

 

[DIYHarry]

be a FAB... use 220uF to 1000uF ... its got the correct current return path if you connect spk- here....
dont use a 100nF or 1uF poly cap for decoupling.....

Prasi, you´r right,
sry, thought on bybass caps...but this is wrong...
it is decoupling for nearest possible power delivery (lowest ESR)
See BesPav: https://www.diyaudio.com/community/threads/f5-layout.307664/post-5080711

See Wikipedia
https://en.wikipedia.org/wiki/Decoupling_capacitor

 

[DIYHarry]

Just to be clear, C2 Panasonic 10uF, C1 should be a…?
thanks for your recommendations.

greeting Harry

 

[prasi]

C1 can be a NPO C0G 50 TO 100V CERAMIC CAP.
You can even use a silver mica, if you have in your bin.
value can be 220p or there about.

 

[prasi]

what value are you planning to use for C1?