Thanks Juan,
I am pleased to know you like it.🙂
You have the Gerber files attached. don't know how to convert to pdf.
Improved performance with better VAS transistors
KSC3503/KSA1381 could be used in place of MJE340/350 for Q4/Q7 for superior performance. leave the 340/350 in place for predriver duties.
MJE340/350 were used only because of non availability of recommended parts in the local market.
So had to order them online. Received 100 each of KSC3503E and KSA1381E.🙂 Good for several new projects.
KSC3503/KSA1381 could be used in place of MJE340/350 for Q4/Q7 for superior performance. leave the 340/350 in place for predriver duties.
MJE340/350 were used only because of non availability of recommended parts in the local market.
So had to order them online. Received 100 each of KSC3503E and KSA1381E.🙂 Good for several new projects.
Attachments
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Hello, Aniket
** I come from China, thank you very much to share information, I liked it, will have time to do a single panel to test the effect!
** I come from China, thank you very much to share information, I liked it, will have time to do a single panel to test the effect!
I attached below PDF version of the Gerber files. Congratulations for the work.
If you want to print actual size, select "Page Scaling = None".
Use these instead:
2SC3902T ON Semiconductor | Mouser
2SA1507T ON Semiconductor | Mouser
Regards,
Aniket
Hello mister Aniket
Since I like you layout a lot I'm trying to actually yes "clone" yours to accommodate the parts I have on hand I'm not done yet and I'm really busy this days I thought to show how it looks, by the way I like more the top installation for the power transistors my personal preference 😀 by the way bro thank you for sharing the file it was really nice of you 🙂
Regards
Juan
Since I like you layout a lot I'm trying to actually yes "clone" yours to accommodate the parts I have on hand I'm not done yet and I'm really busy this days I thought to show how it looks, by the way I like more the top installation for the power transistors my personal preference 😀 by the way bro thank you for sharing the file it was really nice of you 🙂
Regards
Juan
Attachments
1381 and 1507 are not equivalent.
1381 makes a good VAS and pre-driver low Cob 3.2pF to 4pF, Icmax 100mA
1507 makes a good driver Cob 15pF to 22pF, Icmax 1.5A
Agree,
but these are still better than MJE340/350, originally used for VAS duty. main concern is the parts availability.
2SC3790/A1480, 2SC3788/A1478, 2SC3645/A1415(different package) make excellent VAS devices, but then again, are these available.?
On semi has acquired Sanyo I think, hope they would manufacture these.
Regards,
Aniket
The best to design the PCB
M-r Donpetru and M-r Alex are the best to design the PCB-layers!
Aniket, very good audio amplifier!😉
cheers!
M-r Donpetru and M-r Alex are the best to design the PCB-layers!
Aniket, very good audio amplifier!😉
cheers!
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