Definitive LM1875 thread. Discuss and Build

Bare said: What Thump ? I have a wee 1875 DIY amp built exactly to the Data sheet circuit. Toroid dual rail PS, also a diy cobble up..
No turn on thump whatsoever. Am I missing something ?


Good that you have the dual rail amp working. Now try the the single supply version. Be ready for the surprise.
Erm Why ?? should I be foolish enough to try a single rail supply, let alone an SMPS.
Splurge ! the Big $ on a torroid 🤣 and leave all worries /bodges in the rear view mirror.
Not as if an 1875 is an inexpensive build . Not if using genuine/ decent parts. Cheaping out on the PS is counterproductive IMO.
That said it's a 'good' amp. But also absolutely not in the Firstwatt league.
 
What's definitive about it?
What is the simple meaning of definitive?

Something definitive is complete and final. A definitive example is the perfect example. A definitive answer is usually a strong yes or no. A definitive biography contains everything we'll ever need to know about someone

.......
Perhaps it should be comprehensive (complete; including all or nearly all elements or aspects of something.) or ultimate. Since everything here is a work in progress.
 
This one has parts...
 

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