The 5532 OpAmplifier, part 1 - ELEKTOR.com | Electronics: Microcontrollers Embedded Audio Digital Analogue Test Measurement edit / delete

Building a power amp from 32 5532s (courtesy of Doug Self). I suspect the cost of the chip sockets makes this uneconomic.

to amplifier audio electronics pa ... on 26 November 2012

Welcome to the W7GJ Home Page! edit / delete

Reusing broadcast PA modules for 6m, and a surprisingly good homebrew coax relay.

to amplifier electronics pa radio relay ... on 30 March 2012

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