AX5 CFA amplifier, AX6, AX8 and FX4 supply range is from 50V to 80V DC.
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keeping the same drilled holes for o/p and same PCB (well almost), here is FX-4.
A very rough draft🙂. If anyone spots an error, please let me know.
regards
Prasi
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AX5 use darlington output transistors like BDT64C/65C or similar, not BDT87/88.
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Mr. Mile, can you confirm if the single rail regulated PSU (post #92) can work in dual rail mode too with appropriate schematic modification and devices?
regards
prasi
regards
prasi
thanks Mr. Mile. can use a single dual rail PSU 5 to supply two channels of 100W amp (at normal listening levels-home use, never at full power).
regards
Prasi
PS Here is a somewhat better looking FX-4🙂, although I very much doubt there will be any interest because of the cost and vanishing act of laterals .
regards
Prasi
PS Here is a somewhat better looking FX-4🙂, although I very much doubt there will be any interest because of the cost and vanishing act of laterals .
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Prasi these PSU designs look great. I would love to have a test bench PSU that is versatile enough to adjust for many different amp voltages, maybe even current adjust. Investing in a good PSU would really help with other projects down the track. What do you think? Would the psu10 be the one? Im wondering also what the voltage range would be?
Thank you ApexAudio/ Mr Mile for all the designs you have generously given to the community. I'm really enjoying building my Retro 50.
Cheers
Cheers
Hi Prasi,
Would love to build FX-4. Much appreciated if you can provide pdf layout.
Thanks,
It's interesting. But it's scary having darlington output without the output cap. But I know you'll suggest a speaker protect 🙂 But I'll try this one too, thank you.
Hello Boyet,
Here are the files. All the best for your build. Do post here when you build and test it.
regards
prasi
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Mr. Mile,
I wanted to fit the dual rail PSU 5 in 100mm x 100mm for chinese pcbs. So here it is. Its beautiful isnt it?😉
However I could only fit 30mm dia caps, which makes it 6800uf 80V or 4700uf 100V. Some 10000uF in 63 V also available .
So my question is , whether 6800uF is ok or too low?
regards
Prasi
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2- pair regulated PSU.....tedious, took a long long time 
.. tired with making layouts, time to get on to building things...the pending projects need attention (long list....AX-6, Pass HPA-1, LM317+keantoken KMX, AKSA 55, AKSA 55N, JLH2003+B1 buffer, APEX AA9, APEX AX-14, many more)...
.. tired with making layouts, time to get on to building things...the pending projects need attention (long list....AX-6, Pass HPA-1, LM317+keantoken KMX, AKSA 55, AKSA 55N, JLH2003+B1 buffer, APEX AA9, APEX AX-14, many more)...Attachments
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2- pair regulated PSU.....tedious, took a long long time
That's and impressive list of amps.
Fair call Prasi, Time to get soldering. I for one am very grateful for all your hard work. Looking forward to seeing your builds mate.
2- pair regulated PSU.....tedious, took a long long time
I would like 1 x pcb if available Prasi? Thanks for your efforts 🙂