RE: Help identify Xtal filter
Hi,
I have some crystal filters that I am hoping someone can help me identify.
21.4MHz, possibly 6 pole, made from 3 x 3 pin HC-49u cans.
Appears to be about 15kHz wide at -3dB
Marking is 03047A
Any help with a data sheet or termination impedance will be most welcome.
Thanks, Mark