AR88D PSU question.

[Skywave]

To ruminate, (verb intransitive): cows ruminate. A cow has more than one stomach. When it eats the grass, it simply swallows it. Later on, and usually when the cow is lying down, it recovers that undigested grass, chews it and passes it to its other stomach. This process of re-digesting is called ruminating - commonly called 'chewing the cud' - the cud being the mass of grass and digestive fluid brought up from the cow's first stomach. Cows usually 'chew the cud' when they are lying down and then take on a distinct "I'm pre-occupied and I'm slowly thinking about what I'm doing" look on their faces. Hence the phrase, applied to humans, when someone appears to be in deep thought, trying to make a decision - "he's chewing the cud".

And that little zoological missive is about as far removed from vintage radios as I think it is possible to go! I hope it helped.

Al.