This circuit transforms 0 and 6 V signals into -4 to 10 V signals and can be used in a shield. The circuit uses transistors that are still common today.
This frequency divider for 3-speaker boxes was found in the December 1978 issue of Radio...
This filter can use almost any common operational amplifier and needs a symmetrical power source. The...
The configuration shown in the figure makes use of two comparators of the four available on the...