The transistor can be a BC548 and the coil has the following characteristics for 1 MHz. L1 has 80 turns of wire 28 in a ferrite rod and L2 of 30 and 40 turns.
This is the traditional Hartley Oscillator configuration for high frequencies. For 1 MHz wind 80...
This circuit came out in a 1983 English magazine, but it can be easily assembled today, as the...
This circuit was found in a March 1988 Radio Electronics. The voltage scale is set at R3. 19 LEDs...