Would signals paratroopers have jumped with a 19 set in a GP bag??????????

Do you own a serviceable 19 Set? no

No, they'd break their back. They would more likely have a No. 17 wireless set which was a much smaller portable set intended for use as a unit radio (much like the far more advanced American PRC-8).

Do you own a serviceable 19 Set? ALMOST! I'll have it working in time for field day! I promise!