This circuit was found in a 90’s Popular Electronics. The circuit is used to analyze noise in vehicles. The output must be in a low impedance headset.
This circuit was found in a 1989 documentation and was intended to be part of a presence...
This circuit generates noise pulses for audio equipment probes. The circuit is from a 90’s 303...
This circuit is a mixer for video signals. We found it in a 90s Linear Technology documentation. The...