ar 3a caps

[BrianO]

HI

I'm checking the caps in a 3A both 150uf and 50uf measure good as does the 6uf wax covered cap the wax is stapled to the back but there is black stuff on the back of the wax cap. Did the cap leak or is that just some padding for vibration?

Thanks

Brian O

[owlsplace]

HI

I'm checking the caps in a 3A both 150uf and 50uf measure good as does the 6uf wax covered cap the wax is stapled to the back but there is black stuff on the back of the wax cap. Did the cap leak or is that just some padding for vibration?

Thanks

Brian O

Haven't worked on a 3a but I'm assuming the black stuff is the remnant of the black foam that they used for padding. It turns to black goo.

The ESR of old caps is another measurement that should be considered. Most just opt for new caps unless they are the later Sprague electrolytics. I'm sure RoyC can add to this.

Roger

[BrianO]

Thanks

They are the Spraques but I will change the wax covered 6uf

Thanks

Brian O