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 uses a complementary unijunction transistor that is not the common type. The...
This high power dimmer uses a unijunction transistor to trigger the triac. The triac is choosen...
This microtransmitter operates at a frequency between 3.5 MHz and 10 MHz determined by the...