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Re: 25 years of the SIERRA - Mainboard, Band Module and critical parts are available


 

On 7/13/2019 3:10 PM, k6whp wrote:
John,

As I [perfunctorily] read the manual and schematic, the Sierra requires 7 matched 4.915 MHz crystals for the main board and 1 each of the following for the band modules:

RF Crystal PMO

3.500-3.650 11.500
7.000-7.150 15.000
10.000-10.150 18.000
14.000-14.150 22.000
18.000-18.150 26.000
21.000-21.150 29.000
All of the above crystals appear to be in stock at Mouser in HC49 /HC49U packages (large case) in the range of $0.44 to $0.79 in single quantity.? So the premix crystals are not an issue.

72,

Jim, K8IQY

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