OK, I know the last factory equipped PRR trainphone equipped locomotives were the GP30's and U25B's and that trainphone was discontinued in 1967. (Which means all First Generation road power had them) And I understand that PRR went with Motorola VHF voice sets as the replacement. My question is what was the antenna? I have heard the Sinclair "Ice Skate" type was adopted. Is this correct? Were any "firecracker" types installed? I presume they were on the centerline of the cab roof, correct?
What was the policy regarding stripping trainphone equipment? Was it removed (to include antennae) when the radios were installed?
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