New member/ dyna filter caps

Guys. I'm new to the forum and have an original Dyna 70 amp that has been sitting since the 70's. I'm more than sure the filter caps ave dried out long ago. What do you replace them with since they are high v and multiple caps to the canister.

Thanks. Ken

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Thanks so much for the information. I have a background in EE and good knowledge of hi-fi. Antique parts are another matter so thank you for the links.