WSR5-L6 Capacitor.

[eric1959]

So I gather that this item in the picture is C3 on the schematic, a 5 mfd 300 volt non polarized capacitor?

Does it need to be replaced during a recap or is it reliable? 

Also, can the selenium bridge be replaced with a Silicon one without having to add a dropping resistor?

Thank you.

[Ron Rich]

Eric,
If you are using the stepper, you should replace that 5mfd--as for the selenium--why replace it -- I don't ??
answer is yes--but, AC should have fuse added ! Ron Rich

[eric1959]

Thank you, I will be using a Wallbox from time to time so I’ll replace it. Any idea where to get one? Most NP
Caps seem to be less than 300 volts,

[Ron Rich]

Eric,
If you posted where you reside, in your profile, as requested, I could tell you exactly where to go--or if you had read our FAQ's section, as requested, you would know ! Ron Rich

[phillg]

I replaced mine (refurbishing a M100B). I bought a WSR recap kit from TubeSound (tubesound.com) that came with that cap, but I'm sure they'll sell it independently as well. While the recap is easy, the replacement cap is a different shape/size so doesn't fit easily into the space and you'll need to remove the old cap to get the new one in-- it's riveted to the side of the WSR so you'll need to strip off the rivets to get it out.

[Ron Rich]

Phill,
Guess I'm lazy--correction--I KNOW I'm lazy-- I never removed that old one after the first time ! Just find a space the new on fits in, and use Velcro, or double sided tape, with a wire tie, to hold it in-- I have plenty of the caps in stock-- Ron Rich

[phillg]

That's not laziness, that's efficiency!

I tried that, but I couldn't find anywhere to put the cap within the reach of the cables so had to remove the old one - drilling out the old rivets. Wasn't fun, so if you can get away with it, I would also leave the old one in place!

[Ron Rich]

Hi Phil,
No--just lazy--don't wanna spoil my rep. !!
Ron Rich