Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!bloom-beacon!bu-cs!bucsb!erics
From: erics@bucsb.UUCP (Michael L. Ardai)
Newsgroups: sci.electronics
Subject: Laser info needed
Message-ID: <2423@bucsb.UUCP>
Date: 29 Mar 89 05:02:19 GMT
Organization: Boston Univ Comp. Sci.
Lines: 14

(I am posting this for a friend without netnews access...)

I just bought a green HeNe laser.  In addition to the usual Alden
connector for the HV, it has a 1/8" phone plug labled 'electro-magnet'.
There appears to be a coil wound around the output mirror of the tube.
Any ideas what this could be for and how to drive it?  

/mike

(Michael L. Ardai,  ...!decwrl!sequent!sybil!ardai)-- 
ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
o   Eric Schneider      o  This is only where I get my mail.                  o
o   The Terminal Beach  o  My opinions are in no way related to my compilers. o
o   erics@bucsb.BU.EDU  o  And how many DEC repairmen does it take to...      o
ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo