Anti Gravity Projects
All new mini 35 kv 1.5
ma adjustable output
power supply with
instructions on making
a simple craft.
GRA1K Kit ......................... $59.95
GRA10 Assembled ............ $99.95
Green Lasers Pointers
10,000 feet plus - Full 5 mw. A real
LAPNGR5 Ready to use...$129.95
30 Inch Spark
Light weight table top unit
is only 35 lbs with air
cooled two point spark
gap. For 110 or 220
BTC4K Kit ....................... $899.95
B TC40 Assmbld .............. $1199.95
BTC3K Kit 10inch spark .. $349.95
Phaser Pain Field Pistol
Experimental device for
animal control. Variable
and complex output over
130db. Do not point at
people! Higher powered
and rental units available.
PPP1K Kit ......................... $49.95
PPP10 Assembled ............. $79.95
Burning Laser Ray Gun
Uses our sealed
CO laser tube and
current source to
generate a continous beam capable of
lighting fires over distances. Operates
12 vdc with optional inverter for field or
115vac for lab use.
NUTS & VOLTS
LABURN1 Plans ................. $20.00
(all parts available)
Box 716, Amherst, NH 03031 USA
Circle #130 on the Reader Service Card.
Photo 5. Trim away the excess
Photo 6. Carefully cut
through the overlay for
the PCB mounting
holes. Attach the PCB
with the proper spacers.
The membrane switch
should now work.
flex can be a problem. That is, the
PCB flexes instead
of the switch closing. This happens
if there is too much
distance from the
switch to the PCB
Usually this has to
be more than an
inch or two. The
solution is to add a
closer to the
sometimes it is
possible to get a
switch that needs
less pressure to close.
plays? Yes, windows are easy to
make. Just remove the proper area
on the paper overlay before applying
the package sealing tape. This
leaves a window with sticky tape on
the inside face. Now, cut a piece of
package sealing tape a little larger
than the display opening. Carefully
attach that to the inside of the window — sticky side to sticky side. No
more stick! And the window will
be very clear. (Watch out for air
Attractive custom pre-produc-tion membrane switches can be fabricated quickly and cheaply using
simple tools and materials. They are
water resistant and can be quite thin.
Custom switch set-up costs and lead
times are eliminated — while giving
your project that "pro" feel. NV
Electronics, Mechanics & Computing Principles V8.1
New Internet technology enables us
to bring you our latest software at a
fraction of the usual price of $160
and so if you're looking for an easy
and enjoyable way to learn electronics
or just want to keep up-to-date then
this is the package for you!
Also a valuable interactive reference
tool for hobbyists and engineers,
containing more than a thousand
electronic, electrical, mechanics,
math, computing and PIC
FREE downloadable updates.
FREE trial evaluation.
For CD-ROM install add $8.00
This latest V8.1 edition also includes the
unique Equation and Graph Editors, plus full
color printing, white board technology and a
host of other features and even more topics.
See web site for a full listing.
Simple one-click to download and fully
install to your hard drive with a
backup copy, by visiting our web site
and selecting electronics.
You can contact us on firstname.lastname@example.org.