This timer was found in Japanese documentation from the 1960s. The transistor can be replaced by an equivalent and the relay must be of the sensitive type with voltage according to the power supply.
This filter for scratched disc noise was found in an English documentation from 1989. The...
Mouser Electronics owns the Littelfuse SP3422 low-capacitance TVS diode arrays. These components are...
This two-tone decoder has a bandwidth of 24%. The circuit is from a 1994 Electronics Now. The...