电子琴与各种传统乐器的根本差异,在于乐音的产生方法不同.所以,音源电路是电子琴中最重要、最基本的电路.早期的能同时发出多个乐音的电子琴,设置有许多个振荡频率分别与各乐音音高(频率)相对应的振荡器,由安装在琴键下面的键开关的通断来控制振荡器发音.这种电子琴的最大缺点是容易走音.这是因为,由于温度和元件老化等因素,振荡器的振荡频率不可 The fundamental difference between the electronic organ and various traditional musical instruments lies in the method of producing musical tones, so the sound source circuit is the most important and basic circuit in the electronic organ, and in the early days, the electronic organ capable of simultaneously emitting a plurality of musical tones was provided with many oscillation frequencies Oscillator corresponding to the pitch (frequency) of each tone is controlled by the on / off of the key switch installed under the key The biggest drawback of this type of electronic organ is that it is easy to walk, because the temperature and the temperature of the element Aging and other factors, the oscillation frequency oscillator can not