🚀 go-pugleaf

Hello everyone! 

I am the proud owner of a LH RESEARCH Little-MITE 
model LM34-1522 115 power supply.

So what, you say. Well I'll tell ya, it appears to be
a rather peculiar beast in that it has some connectors
that dont seem to make much sense to me.

The power supply has the following connectors on it:

label	my guess on its purpose
ac	hot ac
acc	ac common
gnd	earth ground
pf	????
on/off	???? This is NOT a switch, just a bind post
+s1	??
-s1	???
+s2	???
+v2	plus side of supply 2
-v2	minus of supply 2
-s2	???
+v3	plus side of supply 3
-v3	minus ''
+v4	plus supply 4
-v4	minus ''

I expected the +/- vn connections, but not the +/- sn connections
but they didn't teach us about the sn connections at school!!

So the question: what are the sn and pf connections?

Thanks for any help.
-Rom
rom@xor.sun.com