Elektor who announced that my design represented a new genre, alongside BFO, IB, PI, and BB. One uses this design (pictured) in conjunction with a Medium Wave radio. One can use my BFO Coil for L1 and L2. If this circuit is well adjusted, performance is exceptional. An old Victorian penny, at 180mm (7") in air, will induce a shift in frequency through the radio speaker of one tone. This suggests that, with further development, CCO would compete with the best. This design is unfortunately © Copyright, so may not be re-published elsewhere.