[MRCA] April 23 PRC-47 no transmit update

[James Green]

I measured the PL-177 plate tube B+ at J101 with the tube installed & a 5 amp slow blow fuse in the 20 amp fuse holder.  The fuse blew. I next put in a 10 amp slow blow fuse. This did not blow. I measured B+ Low at 810 VDC and Hi at 1,810 VDC Both are higher than expected. Lo should measure 650 VDC and Hi should measure 1,500 VDC.

I was just wondering if I had a shorted PL-177 tube. How does one determine this?