See: http://www.thereminworld.com/Forums/T/28789/theremin-circuits-scratchpad?Page=0
Some quite interesting, perhaps even astounding "discoveries" may be in progress at TW on this thread:
http://www.thereminworld.com/Forums/T/28789/theremin-circuits-scratchpad?Page=0
Latest simulation circuit for FET "clone" of RCA Armstrong oscillator. Note C5 now couples D-G which is the same as what occurs on the RCA.. Inductor values are now based on calculation using winding and form data.. All detailed at TW.
Some quite interesting, perhaps even astounding "discoveries" may be in progress at TW on this thread:
http://www.thereminworld.com/Forums/T/28789/theremin-circuits-scratchpad?Page=0
Latest simulation circuit for FET "clone" of RCA Armstrong oscillator. Note C5 now couples D-G which is the same as what occurs on the RCA.. Inductor values are now based on calculation using winding and form data.. All detailed at TW.