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Rogozhin Neoclassic High End Power Amplifier
 

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Ok, nothing ventured nothing gained..

here is the latest version of my inductance loaded Class A amplifier: View attachment 660390

If you look closely you’ll see the transformer primary is taped up, that’s because I’m using it as an inductor, only the secondaries are used. It’s one of a pair BTW.

Here’s a board nearing completion:

View attachment 660391

I can’t remember why I took this:

View attachment 660392

The heat sinks are ‘live’ - to avoid isolating pads - so they are secured to the inductor using plastic screws and stand-off’s.

Oh, I should say, from a 6V supply (I use SLAs), it produces 6W into 8 Ohms at 0.003% THD - according to LTSpice. I’m toying with the idea of reducing that to about 4W - not sure.