[Milsurplus] More mystery crystals

[Hue Miller]

----- Original Message ----- 
From: "Tom Bridgers" <Tarheel6> at msn
<glowbugs at piobaire.mines.uidaho.edu>
Sent: Sunday, July 22, 2007 3:06 PM
Subject: GB> 3 pin xtals


> Dunno if this helps or not, but I have two each of the 3 pin xtals:
> 
> #1 xtal plate sez:
> Signal Corps        US Army
> Crystal Unit DC-22A
> Freq. 98.356 +/- .05% kc
> Serial Number  10053
> Order Number 98-Day-44
> Radio Corporation of America
> 
> #2 xtal plate sez:
> US Coast Guard
> Type RCT-2
> Freq. 80.854 kc.
> Serial Number  110
> RCA Manufacturing Co., Inc.
> Camden, NJ, USA
> Tcg 29287
> Date 9-27-38
> Temp 25 deg. C
> Order CG-80-903

What are these, please? -Hue Miller