Found in an English documentation, this circuit serves as a receiver for modulated sources of ultrasound. The sensor is a ceramic capsule. Transistors are general purpose types.
This circuit uses a unijunction transistor in a different configuration to generate rectangular pulses at...
We found this configuration in a 1974 technical documentation. It can test both TTL logic circuits and...
We found this circuit in an old American publication. The circuit is designed to measure the...