[Milsurplus] Odd GF xmtr coil set mystery??

[Thekan, Paul]

 I came across what looks to be a xmtr coil set for the GF series of xmtr.
What I found odd was the freq. range which is 1000 - 1250 Kc . I was not
aware that the GF xmtr operated down that far. Also directly underneath
where the freq. range is etched on the nomenclature plate is also etched
Serial X  Also where the Type and Serial number info would be stamped or
written in - it is blank except for CBY-   The coils set was made by A.R.C.
as a No. 2929 coil set. The contract number is N156S-19737 and dated 7-1-41

 

 Not knowing all about the GF series of xmtrs , this coil set my be no big
mystery to most but It's got me scratchin my head. Can anyone tell me about
this.

 

Thank you

Paul



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