Transcription of The A40 Power Amplifier - FIRST WATT
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The A40 Power Amplifier - FIRST WATT
The A40 Power Amplifier (c) Nelson PassPass Project: A40page 1 FLATTERED BY THE opportunity to publish a project circuit, thedesigner is often beset by seemingly contradictory considerations. Onthe one hand, it is tempting to design a complex circuit as ademonstration of technical prowess; an Amplifier with large numbers ofesoteric components performing obscure functions. Such an amplifiermight be a smorgasbord of electronic technique, featuring class Aoperation, cascoding, constant current sources, current mirrors, andextra-loop error correction. It would be fascinating to build and perhapswould also sound good. On the other hand, complexity is not a good end in itself and a muchsimpler circuit would suit the needs of the amateur more ideally for lowcost, high reliability, and easy construction. Simplicity can often yieldsonic benefits, inasmuch as the fewer the number of components in asignal path, the simpler the open loop transfer curve of the Amplifier .
The A40 Power Amplifier (c) Nelson Pass Pass D.I.Y Project: A40 page 1 FLATTERED BY THE opportunity to publish a project circuit, the designer is often beset by seemingly contradictory considerations.
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