The dropping resistors are just in series with each of the
diodes and tied to pins 3 and 5.
The diodes are tied together at the common pin 8 and the shell
to pin 1:
http://www.pbase.com/dennygraham/image/131744006 looks original when the shell is slipped back on and will last
100 years. But, if it don't, it only costs you a couple of
pennies to replace the guts.
dg
