Amazon.com: OCXO 10MHz Frequency Standard Reference Module, Frequency Reference Signal Source, Crystal Oscillator Constant Temperature Board Frequency Meter for Instrument Benchmarks : Industrial & Scientific
Crystal Quarz 10,24 MHz (10240,0 kHz) 30ppm case: HC-49U Passo 5mm : Amazon.it: Commercio, Industria e Scienza
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