This decoder circuit 3 of 8 was found in a publication for PCs from 1992. The circuits are TTL and must be powered with 5 V.
We found this circuit in an old Popular Electronics. The circuit can be applied to other...
With this circuit it is possible to receive the signals from the 11-meter band (27 MHz) in a...
We found this circuit in an American publication from the 90s. The transistors must be provided with...