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.
The Texas Instruments LM5178 Buck-boost controller is capable of operating in the 4.2 to 55 V (60...
This small transmitter sends signals to the 7 MHz band, but can be modified to operate at other...
Found in American documentation from the 90s, this circuit is ideal for wearables and can be...