Well that was a surprise. A nice afternoon I thought, quick check over, even with the blindfold on….Oh no…A Quad 33-303 came in with the owner saying there were a couple of faults. One easy, okay. the other.. One channel of the main amp, 303, was down but about 20%. Really annoying. Having to resort to the diagram, scope and lucky rabbits foot. Disconnected the -ve feedback to see where the fault is. I didn’t sign up for a half day’s hassle with one of these. Still not finished. What the hell is going on????? After much head scratching, there seemed to be a combination of faults. Various resistors and a few capacitors. The customer really wanted a budget job and didn’t want to spend too much. So, enough to get it working, but needs more!
Me gustó la forma en que el autor del artículo abordó el desafiante problema del amplificador Quad 33-303 con un enfoque sistemático y detallado, utilizando herramientas como el diagrama y el osciloscopio para identificar y solucionar la combinación
¡Gracias por el mensaje!