Just a couple watts ya reckon

[avionic]

This might be Key...A little copper corrosion around one of the 39,000uf caps on the "noisy" amps power supply.The only discoloration on any of the copper buss bars...for either channel.From the bottom side it doesn't look like it vented though.

[avionic]

Originally Posted by cdfac

there is also the Vishay 101/102 PHR-ST series. we'd have to downgrade to 15000uF and 33000uF, but i doubt that would be noticeable. i don't know the price, but they are at least available from Marsh Electronics.

Might try Yamaha service dept. http://www.yamaha.com/ca/catinfo.html?CTID=600149#opt3
FZ003770 39000 uf
FZ003760 18000 uf
Model PC5002M
S/N 1123

[cdfac]

pretty sure they won't be able to help out - i just checked their site below. but it might be worth a shot anyway.

https://www.yamaha24x7.com/yamahaOMS...String=pc2002M

[cdfac]

i just ordered the replacement caps from Newark.com. had to downsize ~16% in total capacitance. not ideal, but really all we could do here. considering how overbuilt the amp was in the first place (~100,000-uF/channel), it's unlikely this will be noticeable in my particular setup. because of the size constraints, it was basically impossible to find the spec'd capacitance available in small enough quantities. i went with 18K7986 and 95F4477 and it cost $300 all told.

this better be all you need, Mr. PC5002M!