On 2020-12-11 17:55, wrote:
On Fri, 11 Dec 2020 16:13:22 -0000 (UTC), "Don" wrote:

Greetings,

Why do Callins capacitors command such a high premium:

https://richelectronics.co.uk/produc...ow-esr-ol0382b

What's so special about them?

What's a good substitute?

Danke,

Is that a non-polar electrolytic? Looks like two regular caps potted.

What use is a 300 uF non-polar 'lytic?

The second picture (un)clearly shows + + + marking.