Peter, That's is essentially the point - it is the Q of the resonator (assuming environmental effects are controlled) which ultimately determines the stability. Very high performance oscillators (the HP E1938A is an example) use a bridge circuit to enhance the loaded Q of the crystal. Other designs (the QAS and BVA) use a complex structure of crystal which places the electrodes outside the oscillating structure in order to enhance the loaded Q.
73, Murray ZL1BPU _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
