Hi everyone,
In my dealings with another forum I came across an interesting concept which could serve as a variable inductor for tuning the LC circuit to resonate.
Behold, the mighty VARIOMETER....
http://www.g0mrf.freeserve.co.uk/variometer.htm
Yup !
You an also use a core as screw. Or just make it movable inside tube.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.a3bs.com%2Fimagelibrary%2FU21903%2Felectricity-and-magnetism%2FU21903_variable-inductance-coil.jpg&hash=cf596131585afdb75893efb7f4e75a5f0add2a31)
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.eng.cam.ac.uk%2FDesignOffice%2Fmdp%2Felectric_web%2FAC%2F02143.png&hash=73e8a3ea336d8a8c6513c349458ca7b0e0affeef)
You can combine these 2. You will get maximal variation.
By the way you can always put induction elements in series.
Yes this are two different system
first-one was used befor WW2 (Germany)
If work by add od substract the Induction from inner coil to the outher coil ´(by turning up to
180 degress.
the second (example 1950/12960 in car Radios from Blaupunkt (and others.
Induction will be vary bey moving the inner core (ferrit) - and other metalls!)
also an conterwound coil can be slide in an outher coil (with larger diameters.
If you tune your L/C devices with the L and the C
you can have in each point of frequency the optimized ResÃtance of circuit.
(Some UHF devices was constructed so 50 years ago...)
Gustav Pese