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How long does Class A have?

Hi Guys/Gals
 I have a Sugden A21SE which is a Pure Class A single ended design, I absolutely love this musical amplifier with its strangely plentiful 30wpc, it runs hots as they do, I always enjoy watching the faces of my uninitiated friends when they touch it after I mention they get hot, lol.
But in this modern green era I wonder just how long do Class A amplifiers have before Greta Thunberg gets wind of this inefficient method of creating sound and pisses on the parade?

Thoughts?
mrmeaner
georgehifi's avatar
georgehifi
10,312 posts
 
The A1 was a very poor design of heat sink, more like a muddy shoe wiper grid.
It bent badly on hot days, finned heatsinks need to be vertical not flat.

Look at the heat buckle starting in this one, lifting at both ends
https://specialistdivision.files.wordpress.com/2013/03/musical-fidelity-a12.jpg?w=710&h=474

Cheers George
phd
1,322 posts
 
noromance, Bill Gates has been a very naughty boy and it isn't because he is trying to look like and act like Mr. Rodgers of Microsoft.
unreceivedogma's avatar
unreceivedogma
992 posts
 
My Futtermans do double duty in the winter: they keep my listening room - in the attic - nice and warm. I never have to turn up the heat.

As for climate change, I thought politics was verboten here. I'm as left as they come on this issue and others, but ...
mcdonalk's avatar
mcdonalk
14 posts
 
I accept that audio-related forums can be contentious at times, but the personal innuendo in the original post regarding the public figure is perhaps the most ugly thing that I recall coming across here.
mrmeaner OP
44 posts
 
I would think that pointing out one person’s post is rather an ugly action in itself, the original post was just pointing out some of our hifi is numbered in its days. I’m going to guess your snowflakes are melting. 
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