[Milsurplus] CY-67 / TRC-1 and mixed crystals in it

[Hubert Miller]

I found in my stuff, a crystal box CY-67 / TRC-1.  It had these groups of crystals in it:
some labeled for AN/TRC-2 ; some for BC-1306 ;
some labeled with channels in two digits channels 10 thru 55, freqs in the 6 and 7 MHz range;
some labeled with channels in numbers in 290s to mid 300s, freqs seem to be in 7 - 8 MHz range;
and some labeled with CR-8B/U and freqs in the 1972.5 - 2895 kHz range. ( Not marine band freqs. )

Maybe someone here is familiar enough with these crystal ranges to tell me what equipment the
channel crystals and the CR-8B/U crystals were for?  I am guessing maybe the CR-8B/U rocks are
remnant of the original complement of the TRC-1 box.
At least the box will be a reasonable accessory for my TRC-2.
thanks-
Hue
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