Field strength meter (CB7358E)

This tuned circuit was found in a 1966 Electronic Circuit Handbook. The transistor can be any modern general-purpose equivalent.

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Current Monitor (CB5137E)
This circuit was obtained in the manual of the used integrated circuit. Equivalents may be used...
6 or 12 V x 3 A Power Supply (CB1189E)
This source whose voltage depends only on the zener diode used, can supply currents up to about 3 A....
Light out switch (CB8331E)
This highly sensitive circuit was found in a 1967 General Electric SCR manual. Equivalent...