The integrated circuit used is uncommon today. The circuit was obtained in the Philips integrated circuits manual of 1990. The reference voltage-range is from 0.5 to 9.0 V.
This receiver is from a 1967 Japanese publication. The transistors are germanium and the output...
The basis of this project is a three-position lever switch or similar. When the switch is in the...
The astable multivibrator shown by the figure can produce signals in the 10 to 10 000 Hz band...