My 2nd Gainclone.

[samsagaz]

i will try with the LM3886 because i already have like 5 of this chips 🙂

 

[AndrewT]

C5 is far too small. It must be sized so that the high pass action of Ri2 and Ci act as the bandwidth limiting filter.
for 2u2F & 20k use C3>=62uF (68uF or 75uF or 100uF).
for 4u7F & 20k use C3>=133uF (150uF or 180uF). This is my preference.

Add an RF filter to the input.
Somewhere between 330pF and 1nF should match the 1k0 you have for Ri

 

[samsagaz]

Finished 2 diferenes PSU to test with the amp, btw, now will purchase the components to build the Amp, wich brands you recommend me for Caps and Resistors?

 

[lanchile]

Well most people use Caddock resistor,Panasonic FC capacitors(but,you can always go higher like Black Gates capacitors),MUR860 diodes.I use Black Gates caps in my amp and let me tell you it makes a big improvement. Good luck

 

[samsagaz]

Thanks too much, looks like Black Gates are not produced anymore.

 

[lanchile]

You can still find them,they are expensive but Worth every penny.

 

[samsagaz]

Well, i already found

Panasonic FC capacitors (2200uf and 1000uf) will order this 2 values so i can compare it.
MUR860 from Onsemi.

not lucky with Caddock, (ar least where im searching). I found some Vishy, are not good like caddock right?

About BlackGates, 47uf value i need to purchase?

what about the brand for Cs1 and Cs2 caps?

 

[samsagaz]

I found some EEU-FC1H4R7 (4.7uf) caps, is OK to use that in some place of the circuit? 🙂

 

[samsagaz]

I found some Militar Grade Resistor from Vishay

http://www.vishay.com/docs/31023/31023.pdf

Someone test it to build the Gainclone? i really was not lucky finding Caddocks 🙁

Btw, talking about Vishay i see like 30 diferent models 🙁

wich one are good for audio apps? i checking Vishay website and i really dont know where to start 😀

For example in 22K i get all these models :S

http://www.vishay.com/resistors-discrete/res-tol-less-1/res10K-1M/