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AndyH All Messages By This Member #38471 Maestro (and group), ? I ordered a 5-crystal lot of both A and B from the Aliexpress vendor back in November.? They finally arrived today.? Both lots appear to be identical visually, and both are marked 45M15B.? My first lesson was not to bother paying extra for "A" when you'll get "B" anyway.? HIHIHI ? When I'd given up on the envelope from China, I ordered crystals from Oz - it's the only vendor I could find with 45M15A.? . ? For what it's worth... ? Andy, KG5RKP?? toggle quoted message Show quoted text On Fri, Oct 6, 2017 at 01:53 pm, Ashhar Farhan wrote: I bought some from WTL Crystals. Here is something similar: On Sat, Oct 7, 2017 at 2:10 AM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote: Thanks for posting that! Curious about your 45 mhz crystal filter. I don't see any google hits for a 45M15F, perhaps that's a 45M15A? The 45M15A looks tough to get from the usual distributors, but does exist. Mouser has the ?similar ECS-45K20A in stock for $6.00, that might work. Though impedance matching network may have to change.? On Fri, Oct 6, 2017 at 01:10 pm, Ashhar Farhan wrote: I am plodding through the write-up part of the new version. in the meantime, here is just the schematic. not very different. ? ? ? ?

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