This circuit is from the time when cars used contact breakers. This 80's version measures the dwell angle of the contact breaker for dwell adjustment using an era integrated circuit, the LM3917.
This small transmitter operates in the medium wave range. T1 is an output transformer for...
This circuit for 1 kHz sinusoidal signals uses a common operational amplifier circuit and is...
We can use this amplifier with low impedance headphones with good performance. Possible...