🚀 go-pugleaf

>Anyone know of a reference to plans to build a small, reliable powersupply
>with easily available parts for a 4mW HeNe laser tube?
>Thanks /len


Yes, in fact.  See the March 1989 edition of RADIO ELECTRONICS
magazine.  In it is the schematic for a "Universal LASER power
supply".  This supply was designed to accommodate a wide variety of
helium-neon tubes, both old and new, up to a maxiumum power output of
about 5 milliwatts.

If you can't get ahold of that, you can get an etched and drilled PC
board, and a kit of ALL parts (excluding project box) for $39+$3
shipping+handling.  Here is the address:

General Science and Engineering
P.O. Box 447
Rochester, NY  14603
Phone: (716) 338-7001

It looks like a heck of a deal, since I've seen laser power supplies
go for a minimum of $50 at a bargain shop.
-- 
      Jim "Lips" Earl             UUCP: ucbvax!ucdavis!csusac!mmsac!jim
          KB6KCP              INTERNET: mmsac!jim@csusac.csus.edu
   =======================================================================
                  The opinions stated herein are all mine.