Thread: Crystals
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Old February 8th 06, 01:41 AM posted to rec.radio.amateur.homebrew
Wes Stewart
 
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Default Crystals

On Wed, 08 Feb 2006 01:03:19 GMT, **THE-RFI-EMI-GUY**
wrote:

Don't you mean KHz??


Nope. He meant Kc. These are WWII rocks that were marked in Mc.

Ah the good old days when when we had kilomegacycles per second.



Henry wrote:

If the crystals are the old WW2 crystals that are about an inch
square, the frequency is determined as follows:

If the Channel is a 2 digit number, divide the marked frequency by 54
to obtain the fundamental frequency:

Channel 32
Marked Frequency 32.2 Mc
Fundamental Frequency 32.2/54 = 429.630 MHz

If the Channel is a 3 digit number, divide the marked frequency by 72
to obtain the fundamental frequency:

Chhannel 381
Marked Frequency 38.1 Mc
Fundamental Frequency 38.1/72 = 529.166 MHz

Hope this helps and 73,

Henry WA0GOZ