APEX 550W
SIR, WIL THANK'S, as of now no available 220ac. pri. 30-0-30 sec. here in my place. i have 220/ 50-0-50 10A TRANSFORMER I can use this one for APEX 550W which is 65V is required power supply. pls sir i need your advise..
thank you sir willy and more power...
SIR, WIL THANK'S, as of now no available 220ac. pri. 30-0-30 sec. here in my place. i have 220/ 50-0-50 10A TRANSFORMER I can use this one for APEX 550W which is 65V is required power supply. pls sir i need your advise..
thank you sir willy and more power...
Hi all,
Here is my version of QUASI amplifier with current protect and some changes of values.
schematic
https://www.dropbox.com/s/egkgh82fsasb8yi/schematic +-52V.PNG
Board
https://www.dropbox.com/s/jvfugcho97mzmio/QUASI super mini Layout.PNG
PCB for Print
https://www.dropbox.com/s/itv3qlde2yzn7jt/QUASI super mini.pdf
And some of my projects with this circuit
https://www.dropbox.com/s/ugq9yguiqn4nkts/26012012616.jpg
QUASI Amplifier 2x180W
QUASI amplifier 2x180W | DIY Projects
Active Speakers with QUASI amp
??????? ?? ? LW1200 | DIY Projects
DIY SUB-woofer amplifier monoblock
| DIY Projects
QUASI Amp 2x180W peak power
QUASI amp 2x180W peak power | DIY Projects
BR,
Lyubo
Here is my version of QUASI amplifier with current protect and some changes of values.
schematic
https://www.dropbox.com/s/egkgh82fsasb8yi/schematic +-52V.PNG
Board
https://www.dropbox.com/s/jvfugcho97mzmio/QUASI super mini Layout.PNG
PCB for Print
https://www.dropbox.com/s/itv3qlde2yzn7jt/QUASI super mini.pdf
And some of my projects with this circuit
https://www.dropbox.com/s/ugq9yguiqn4nkts/26012012616.jpg
QUASI Amplifier 2x180W
QUASI amplifier 2x180W | DIY Projects
Active Speakers with QUASI amp
??????? ?? ? LW1200 | DIY Projects
DIY SUB-woofer amplifier monoblock
| DIY Projects
QUASI Amp 2x180W peak power
QUASI amp 2x180W peak power | DIY Projects
BR,
Lyubo
dear sir
where is the board of your first schematic url][https://www.dropbox.com/s/egkgh82fsasb8yi/schematic%20%2B-52V.PNG[/url]
thanks
djk;3430864I used to buy the blank $6 Pass A40 boards (for the 40W class A design) and change every part on them to run at ±95V with six pair of MJ15024/24 for outputs and 2SA1302/2SC3281 for drivers. It would deliver between 600W/4Ω~800W/4Ω depending on the transformer VA.[/QUOTE said:
"Post schematic if possible."
Same basic schematic, skip the FET, mount the bias transistor on the heatsink with the outputs.
Use high voltage parts everywhere.
You would need to make the board, it is no longer available for $6.
If doing a new board layout I would add anothe pad to the 2nd voltage amplifier and its current source, that way you could use the MJE340/350 pair, as well as the MPUS10/U60 that I used (unavailable), and the 2N3440/2N5415 (a common industrial part). 2N54xx/2N55xx parts for all the small plastic types.
Same basic schematic, skip the FET, mount the bias transistor on the heatsink with the outputs.
Use high voltage parts everywhere.
You would need to make the board, it is no longer available for $6.
If doing a new board layout I would add anothe pad to the 2nd voltage amplifier and its current source, that way you could use the MJE340/350 pair, as well as the MPUS10/U60 that I used (unavailable), and the 2N3440/2N5415 (a common industrial part). 2N54xx/2N55xx parts for all the small plastic types.
dear nazirdigi,
i want to make this pcb by toner tranfer method.can you send me that pcb image in reverse type thanking u.urs masood
dear apex,
plz send me pcb image by which i can make by toner tranfer method.thaniking u.
dear apex,
in circuit input electrolytic cap is 2.2and 100micro farad respectively,but in component plan there is 1 micro and 47 micro farad what is right.regards
dear sir
transistor bc 546 is 80v trans.,bc547 is 60v trant. plz give me the equivalen of bc546 thanks
hello sir can you share the file of it to me here's my email add ...[EMAIL="a.buyo@yahoo.com.ph"/EMAIL]
thanks in advance