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Hey Gary,
Rocks aren't cheap he http://www.icmfg.com/thruhole_crystals.html Maybe in 9 land they pave the streets with gold. Personally I'd go with a programmable divider or PLL. Maybe you like retro, then I'd get some old rocks the ones you can take apart and grind them down to git's the freq's you need. I recall grinding some of these to get them into the novice band back 40 yrs ago. And putting a pencil mark on the quartz to get them to go down in frequency. FT243 style can be found here maybe still: http://www.af4k.com/crystals.htm 73 OM n8zu On Sep 2, 4:12 pm, Gary@ removenospamandputkf9cm.com wrote: I am looking for some Heterodyne conversion crystals for a receiver I am making. The frequencies a 5 MHz, 7 MHz, 10.5 MHz, 13.5 MHz, 17.5 MHz and 21.5 MHz. The variable mixing frequency will be from 3 to 3.5 MHz. I would prefer all the same type holder. TNX de Gary, KF9CM |
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