I need the value of the capacitor near the output relay. Its a non-polar type. This one is blown and gone, So I am unaware of its original value.
Thanks.
Thanks.
There are two. But the other one was/is significantly larger than the one that failed. At least footprint wise.
Thats the same thing i have. But the capacitor near the coil (upper of picture) for some reason was smaller on this amp. And of course the replacement popped again.
So, I'll go with your suggestion an replace the capacitor to the exact one as the other.
Question: Where to obtain a replacement? I know these BiPolar caps are hard to find especially on mouser/digikey where I frequent. My last attempt was taking two polar capacitors and rig them in series with the negatives facing each other. Making sure to get double-values so it divides to the correct value.
But not sure how the math on voltage ratings are at this point.
So, I'll go with your suggestion an replace the capacitor to the exact one as the other.
Question: Where to obtain a replacement? I know these BiPolar caps are hard to find especially on mouser/digikey where I frequent. My last attempt was taking two polar capacitors and rig them in series with the negatives facing each other. Making sure to get double-values so it divides to the correct value.
But not sure how the math on voltage ratings are at this point.
If the replacement failed in a short time, you may have a shorted (possibly intermittently) shorted inductor.
In similar amps like the Memphis amps, you can generally get by with 10uf caps in place of the 33uf caps. I use 10uf 250v film caps. There are a few amps that need at least the original capacitance. For those, I use two 220uF@200v caps with the negatives tied together (as you did). I've never had a problem doing that even though the capacitance is higher. The reason I used the 220uf was because I stock them for other amps.
In similar amps like the Memphis amps, you can generally get by with 10uf caps in place of the 33uf caps. I use 10uf 250v film caps. There are a few amps that need at least the original capacitance. For those, I use two 220uF@200v caps with the negatives tied together (as you did). I've never had a problem doing that even though the capacitance is higher. The reason I used the 220uf was because I stock them for other amps.
I used ksa1220ay and ksc1690ay as audio drivers. For the power section I only tried 2SA1275 and those worked for PNP drivers. I'm guessing BD139's and BD140's will work but didnt try them. See attached.
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