This TTL circuit was found in an American documentation from the 80s. The components are common in the series and the supply must be made with a voltage of 5 V.
This is a channel of a stereo amplifier and small power with the LM386 suggested by the Radio...
This circuit is from an old documentation from the 80's. The circuit provides an output signal for a...
This indicator was found in a 1974 publication, but it can be fitted with the BC548 transistor or...