[pokey]

Thank you!  Yes, I've been reading as many sources as I can get my hands on.  So far, the Navy's 1946 "Introduction to Radio Equipment" has delivered the most a-ha! moments.  The whole experience is indeed very rewarding.  Addictive, even.

Ok, found the connections.  For the two white ones (one of which shares a joint with one power cord black), the meter jumps all over the place.  But when it settles, it reads 0.4, which I guess = 4 on my meter's lowest possible setting of 200.  That's good, right?  For the two yellows on pins 4 and 6 of the rectifier, I'm getting 185.

I appreciate the guidance!