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Crystal filter necunoscut

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Am intrat in posesia unui filtru (banuiesc cu cuarturi) fabricat de Senelgrove Company,Canada.Are urmatoarele inscriptii:





Orice informatie este binevenita,va multumesc!

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Salut. Am si eu unul. A fost folosit din cit stiu eu intr-un receptor militar romanesc. Cred ca era pe prima frecventa intermediara. A doua era probabil pe 200KHz. Daca reusesti sa faci un VFO, DDS sau PLL stabil intre 100...130Mhz poti contrui un transceiver cu acoperire totala. Filtrele mecanice pe 200KHz RFT inca se mai gasesc la preturi destul de modice. 73!!!

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