canyoudigit
New Member
Hello,
I am trying to revive my 1983 Sansui Z-7000 receiver. It has 2 - nichicon 10,000uF power supply caps at 71v, 85degC. 80mm high x 40mm wide. They have 5 pins (separated by 60deg each), only 2 are active (across from each other), spaced at 25mm across from each other.
They have vents on the lead side, both are leaking.
I am having a very hard time finding replacements of any brand.
I already looked at Mouser, Digikey, etc. Either they don't have the exact replacement, or are a year back order. I am constrained in diameter as there is stuff around the caps on the board. I do have some free space on height. I even looked at larger caps, but not sure how far I can go before inrush current damages the bridge rectifier diodes.
I ordered a couple from ebay/china, rated for 80v, 105degC, but the lead spacing is only ~12mm, dia 35mm. They test about 3% under 10,000uF which I think is fine.
My question: Where can I get compatible caps? Can I adapt these caps somehow?
1) Can I find the proper capacitor somewhere?
2) Can I add an adapter board in between circuit board and cap (with lead spacing of 12mm to 25mm board spacing)? How thick do I need to make the adapter board traces? Will I mess up the ground plane if I raise the cap up?
3) Can I tack weld some added lead (without messing up the cap) to get cap to connect to the existing 25mm separated holes?
4) Can I consider drilling new holes through the power supply board, 12mm apart? Don't know if it is a multi-layer board.
Any constructive thoughts are appreciated.
Thanks,
cu
I am trying to revive my 1983 Sansui Z-7000 receiver. It has 2 - nichicon 10,000uF power supply caps at 71v, 85degC. 80mm high x 40mm wide. They have 5 pins (separated by 60deg each), only 2 are active (across from each other), spaced at 25mm across from each other.
They have vents on the lead side, both are leaking.
I am having a very hard time finding replacements of any brand.
I already looked at Mouser, Digikey, etc. Either they don't have the exact replacement, or are a year back order. I am constrained in diameter as there is stuff around the caps on the board. I do have some free space on height. I even looked at larger caps, but not sure how far I can go before inrush current damages the bridge rectifier diodes.
I ordered a couple from ebay/china, rated for 80v, 105degC, but the lead spacing is only ~12mm, dia 35mm. They test about 3% under 10,000uF which I think is fine.
My question: Where can I get compatible caps? Can I adapt these caps somehow?
1) Can I find the proper capacitor somewhere?
2) Can I add an adapter board in between circuit board and cap (with lead spacing of 12mm to 25mm board spacing)? How thick do I need to make the adapter board traces? Will I mess up the ground plane if I raise the cap up?
3) Can I tack weld some added lead (without messing up the cap) to get cap to connect to the existing 25mm separated holes?
4) Can I consider drilling new holes through the power supply board, 12mm apart? Don't know if it is a multi-layer board.
Any constructive thoughts are appreciated.
Thanks,
cu