This circuit is better than the previous one in that the control is isolated by a transformer. The transformer has 110 or 220 V primary and 6.3 to 12 V secondary with 200 to 500 mA current.
This circuit trips when the input voltage exceeds 13.8 V, which is an important value in the case...
27 MHz Transmitter (CB14008E) This circuit was found in a Japanese publication from the 1970s. The...
Texas Instruments' low power operational amplifiers OPAx196 can be found on Mouser Electronics....