This conventional astable uses two NPN transistor and was found in a publication of the year 1968. The transistor can be replaced by modern types and power supply can range from 9 to 12 V.
![](/images/sampledata/cb/cb998_0001.jpg)
This conventional astable uses two NPN transistor and was found in a publication of the year 1968. The transistor can be replaced by modern types and power supply can range from 9 to 12 V.