I had a spare 16MHz Crystal that was sacrificed to satisfy my curiosity. I removed the lid by grinding away the at the edges.
|3.2 x 2.5 mm 16MHz Crystal|
The photo shows the small crystal chip inside of a cavity supported by two gold plated corners on two gold rounded mounds. The electrical connection appears to be just a gold-on-gold contact, with a dab of silicone on each terminal for shock mount. The other end is free floating without support.
|3.3 x 2.5 mm 16MHz Crystal|
I an not sure that I can expect much from these when used is a multiple crystal Bandpass Filter, but it will be a fun experiment. I expect too much drive level will be the biggest concern. As per Farhan's original circuit, I will use 8 of these to build the filter.