Greetings fellow DAMANHURI from Paraguay South America, I have a query, as called for softwar that uses this PCB. Thank you.
Last edited:
Someone help,
I am new to amplifier building and I don't know where you purchase the b500 board.
Please Help,
cjschwarze
I am new to amplifier building and I don't know where you purchase the b500 board.
Please Help,
cjschwarze
The meaning of DIY anything is to make it yourself. You have more than one drawing offered here to scale correctly and photocopy to photo-resist PCB material or use the toner transfer method with plain PCB laminate. Then you need to etch and drill the holes in your own board before fitting parts that you must also purchase.
This is a big amplifier and originally 2 boards at least. read following #8. The complete amplifier will be very expensive and dangerous to work on. If you are new to amplifier building and don't know how to do these things, you must learn with something easier and lower voltage first or ask someone who is successful if they will help you or sell you extra boards. Safety first, please. 🙂
Last edited:
I use the component layout drawing Diptrace Ver 2.2, I hope you are not disappointed to see it. regards
Do you have the bottom side Sir Damanhuri....? what size the pcb..?
What is the Tip 31 use for..?
Someone tell me the normal protection to the APEX. The standard defense of the APEX is bad! short-circuit in the load relay does not have time to work
i want two answer
one is what is slew rate?
second is how can i measure 10 micro fared to pico fared?and i have one styro flex type condenser on that is print as 10000 ,10% 250v?what is value ? thanks yours ever masood
one is what is slew rate?
second is how can i measure 10 micro fared to pico fared?and i have one styro flex type condenser on that is print as 10000 ,10% 250v?what is value ? thanks yours ever masood
mr.vedmitra sharma namaskar,
my question is that how can you etch the board?by screen method or by toner transfer?anticipating for your answer?thanks with regard
i have a styroflex type of capacitor indicated as 100000 , 5% , 250 volt how can i know the capacitor value in micro farad , kilo farad ,and nico farad thanks
Facing problem with protect circuit
Hello APEX,
i finished your amp and i am really pleased with the sound.I get 45mv dc at the output.
My problem is that when i connect the output of the amplifier to the protect i get -78mv dc at the output and the protect circuit turns the speakers off.
All connections are ok i have checked many times.
Any help would be greatly appreciated.
Dear Regards
Hello APEX,
i finished your amp and i am really pleased with the sound.I get 45mv dc at the output.
My problem is that when i connect the output of the amplifier to the protect i get -78mv dc at the output and the protect circuit turns the speakers off.
All connections are ok i have checked many times.
Any help would be greatly appreciated.
Dear Regards