4049 Oscillator with Mark and Space (CB24857E)

With mark and space adjustment this circuit was found in November 1984 Radio Electronics. The base frequency depends on C1.

Triple beacon (CB22137E)
We have already presented this circuit elsewhere on our website. This version of an English...
Divider for Battery (CB15688E)
With this circuit it is possible to obtain an intermediate voltage of 6 V from a 12 V battery with...
9V Eliminator (CB23752E)
This 9 V battery eliminator was found in Radio Electronics magazine from June 1966. The transistor is of...