Difference between revisions of "TP - Telephone"

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* [[TP-1]], [[TP-1-T1]], balloon telephone
 
* [[TP-1]], [[TP-1-T1]], balloon telephone
 
* [[TP-2]], [[TP-1-T1]], balloon telephone
 
* [[TP-2]], [[TP-1-T1]], balloon telephone
* [[TP-3]], [[TP-3-T1]],
+
* [[TP-3]], [[TP-3-T1]], sound powered
 
* [[TP-4]]
 
* [[TP-4]]
 
* [[TP-5]]
 
* [[TP-5]]

Revision as of 18:03, 28 February 2015

Possibly SCR system nomenclature, short lived. if the TP-1 was 1940, it would have been replaced by "TA" in 1943 by JETDS.