A Two Transistor Oscillator Circuit based
on U.S. Patent 4,204,160  Figure One
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This two transistor NPN oscillator uses two inductors and
has  an oscillating frequency around 500 kHz.  The 33 pF
capacitor was added for feedback coupling to make the
circuit oscillate. One should refer to the actual patent at the
U.S. PTO site for information on inductors L1 and L2.  This
circuit is presented in Electronic Workbench 5.12 simulator
format and it will start oscillating about 3 seconds after the
simulation is started.  If the same circuit is simulated using
Multisim 7, it will take about 30 seconds for the  oscillation
waveform to occur.