Subject:  Price List      Revised: 8/4/94  1/6/95

The printed cicuit boards for the headlamp voltage regulators are "in
stock", I have parts for kits and I have assembled and tested units.
If you have a good thin point soldering iron and a little soldering
experience, the kit should be no problem.  If in doubt or lazy, I
suggest a A&T unit.  Prices are as follows:

Schematic and Documentation            Free   Email willie@cs.indiana.edu
Bare printed circuit board              $10
Kit:  PCB plus parts                    $20
Assembled and Tested                    $30
Assembled and Tested Zoom module        $40

"Low power" alkaline battery option add $5 to the Kit (thus $25) or
A&T (thus $35) price.  The Zoom module comes only with "low power"
option (thus the $40 include the $5 extra option).

This price also includes shipping via US mail. Let me also explain
that the kit will include all the parts for the PCB but not any
external stuff like wiring, power switch, box, battery holder, etc.
Since this regulator can be used with many types of batteries and
bulbs, it is up to the user to select the battery and bulb combination
that suits his needs. There are many possible battery and bulb
combination that will work well.  If you have questions about it,
please Email me.

If you are using alkaline batteries then you need the "low power"
option as it comes with 2 low ESR 4700uF caps that are needed.  If you
are using low power bulbs (IE < 1 watt) you my want the "low power"
option as it will significantly increase battery life because it also
comes with CMOS 555's.  Also, if you want to put the regulator in a
Petzl Zoom headlamp tell me and I will include 2 smaller 1000uF caps
instead of the 4700uF's.  These are plently large enough for the Petzl
lamps and will fit inside the battery compartment. 

The Assembled and Tested unit is ready to hook up and use.  It is
fully adjusted and tested.  The only change you may need to do is
unplug the standard 200K for R11 (5.2v volt bulb) and plug in a
different value.  The Kit and A&T units are shipped with various
values for R11 (2.3v, 3.75v, 4.8v, 5.2v) so you can choose which one
you want.

For Zoom users, you can opt for the Zoom module which includes the
Assembled and Tested board connected to the 1000 uF's and connectors
for 2 9 Volts battery and the headlamp, so all you do is drop it in
and use it.

The system is not designed for 12 volt use but it can be modified to
work for one.  Again, Email and I will send the pertinent info.

If you have not looked at the documentation, please Email me and I
will send a copy.  Finally, to order send a check or money order to:

Willie Hunt
1600 Maplecrest
Bloomington IN 47408-1253

I will send stuff COD, but you will pay for the COD charges.  Also any
order will include assembly instructions including a PCB parts
placement diagram, a revised schematic (showing the part values
provided in the kit or A&T unit) and other assembly and wiring
details.

Willie Hunt