On Thu, 07 Jan 2021 14:26:06 +0000, Cursitor Doom
wrote:

On Wed, 6 Jan 2021 21:40:39 -0600 (CST), Chuck
wrote:

The .47 to 1F caps have been used for 30 years in stereo receivers.

I'm suitably amazed. Mind you I've never had much to do with them.
Come to think of it, a Denon tuner that I bought in 1988 has a super
capacitor for memory.