This 6W amplifier with 4 tubes was indicated in an American documentation from 1947 to operate with recorders. The circuit uses a source with a transformer.
This circuit can operate in a 100 dB range with signals of up to 100 MHz frequencies. Similar...
May 2017 - New sequencers UDC9090A for monitoring up to 10 power supplies from Texas Instruments...
Figure bellow shows how n flip-flops can be associated to perform a shift register. Data is...