I’m looking to repair my amp but cant find where to buy parts for it
Im looking for transistors and gate resistors
Amp turns on but no sound
Im looking for transistors and gate resistors
Amp turns on but no sound
Values?
Part Numbers?
You have a schematic?
Mouser, Digi-Key, so many others may have the parts.
But do not expect us to find the details for you, please do some of the work.
How did you decide the parts had failed?
Part Numbers?
You have a schematic?
Mouser, Digi-Key, so many others may have the parts.
But do not expect us to find the details for you, please do some of the work.
How did you decide the parts had failed?
It would be useful if you put your location on your account so we can see where you are.
I would suggest not buying from China or Ebay.
Use genuine sources like RS Components, Farnell, Digikey or Mouser.
I would suggest not buying from China or Ebay.
Use genuine sources like RS Components, Farnell, Digikey or Mouser.
IRF3205PBF Infineon / IR | Mouser
The resistors don't have to be that specific part. 47 ohms is the value. 1/8w is the size and 1% tolerance is a bonus. Even if you only had 5% tolerance, you could hand-pick 8 that were within 1%.
https://www.mouser.com/ProductDetail/Vishay-Dale/RN55D47R0FB14?qs=AmqebhybUVehrhstVd8pFQ==
I'd suggest mounting them up slightly so that they do less damage to the board if the PS fails again.
The resistors don't have to be that specific part. 47 ohms is the value. 1/8w is the size and 1% tolerance is a bonus. Even if you only had 5% tolerance, you could hand-pick 8 that were within 1%.
https://www.mouser.com/ProductDetail/Vishay-Dale/RN55D47R0FB14?qs=AmqebhybUVehrhstVd8pFQ==
I'd suggest mounting them up slightly so that they do less damage to the board if the PS fails again.
Attachments
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After you get enough posts to allow editing your sig line, post a list of the equipment you have.
For now, do you have a scope?
Please (and this applies to anyone who needs repair help) use your sig line to list all equipment you have, editing it as equipment changes. Include the model numbers.
Top of page, menu USER CP >> EDIT SIGNATURE
Oscilloscope (yes or no)
Multimeter(s)
Type of signal source (grounded RCA shields preferred).
Soldering iron
Desoldering pump
Power supply
2 ohm current limiting resistor (hollow cylindrical ceramic 100w preferred)
For now, do you have a scope?
Please (and this applies to anyone who needs repair help) use your sig line to list all equipment you have, editing it as equipment changes. Include the model numbers.
Top of page, menu USER CP >> EDIT SIGNATURE
Oscilloscope (yes or no)
Multimeter(s)
Type of signal source (grounded RCA shields preferred).
Soldering iron
Desoldering pump
Power supply
2 ohm current limiting resistor (hollow cylindrical ceramic 100w preferred)
I don’t have a scope just a klein multimeter and a basic soldering iron and desoldering pump.
Is this good solder for this kind of application
Kester solder 44" Rosin Core #66/44 .8mm 1 lb. Spool https://www.amazon.com/dp/B001W2XZO...abc_G174NVPFWTNTYTS1M32B?_encoding=UTF8&psc=1
Is this good solder for this kind of application
Kester solder 44" Rosin Core #66/44 .8mm 1 lb. Spool https://www.amazon.com/dp/B001W2XZO...abc_G174NVPFWTNTYTS1M32B?_encoding=UTF8&psc=1
If you have only one roll of solder, that may be a bit too small. I used 24-6040-0039 for most of the work I did.
I could but you shouldn't have a problem with this if you ordered the rest of the parts. Why is this one different?
I have the everything. New Mosfets, resistors, rectifier. New Npn and pnp. I don’t want to install anything until i put a new 10 ohm fuse or whatever it’s called.
Find it on whatever distributor's site you want to use and post a link to the part you intend to use, if you're unsure what to order.
The amp isn't likely to do much with this resistor open since it feeds voltage to the driver transistors.
The amp isn't likely to do much with this resistor open since it feeds voltage to the driver transistors.
I've never tested without them but without supply voltage to the drivers, the power supply won't function. It may get signal to the drivers but I wouldn't expect to see drive at the output of the drivers.
For testing, you can solder in a 10 ohm leaded resistor.
For testing, you can solder in a 10 ohm leaded resistor.