The transistor used in this circuit is uncommon today. AC124 or equivalent such as AC188K and 2N2431 can be used. The circuit is from the 80's and makes use of transformers.
This source was found in a 1982 American publication, but can be easily assembled using 2N2995 (PNP...
September 2017 - Panasonic Dy2L TVS diodes for network applications, security, medical equipment,...
This short-range circuit for the AM NW range was found in a 1960 Sylvania transistor manual. The...