- on Audio/Video/Photography
- Published in issue 7/2011 on page 41
Voltage Limiter for Guitar Amplifiers
Guitar amplifiers using output devices such as the TDA7293 (100 W) or LM3886 (68 W) are surprisingly often damaged as a result of excessive supply voltage in the quiescent state. The transformers are often used so close to their specification that this problem can even be caused by a high mains input voltage.