This 1965 Philips circuit uses old company transistors like the BFY51 and BFY50. The circuit is powered by 12 V and the power gain is 8.9 dB.
This circuit synthesizes a sinusoidal signal from logic pulses that can be obtained from an...
This old fashioned transistor amplifier was found in a publication of the year 1958. Transformer...
This circuit uses a loop antenna to receive and amplify signals from the 60 kHz long wave band....