This circuit was found in a Hands On Electronics from the 90s. The circuit does not need a symmetrical power source. The signals with which it operates are alternating.
This circuit was found in the January 1989 issue of Radio Electronics magazine. The circuit sends...
We found this TTL power supply circuit in the December 1972 issue of Radio Electronics magazine. The...
This circuit was found in an American documentation from the 1980s. The sensitivity ranges from...