Described in the December 1969 Radio Electronics magazine, this circuit is intended to supply the previous circuit. The circuit is not isolated from the power grid.
This circuit generates approximately sinusoidal signals from the rectangular signals generated by a 4093...
This two-digit timer was found in the 1983 Special Projects issue of Radio Electronics magazine. The...
This circuit activates a recorder from the signal obtained from a telephone line in the service. It is...