04-08-2022, 08:45 PM
See also https://www.electronicproducts.com/advan...-crystals/
If the crystal is an overtone type the feedback gain should be low to zero below the desired overtone mode and also it's probably a good sign if the circuit oscillates without the crystal, but is at desired overtone frequency when crystal inserted.
If the crystal is an overtone type the feedback gain should be low to zero below the desired overtone mode and also it's probably a good sign if the circuit oscillates without the crystal, but is at desired overtone frequency when crystal inserted.







