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192 PAGE POPULAR OPTICS "HOW TO" BOOK
If you are interested in experimenting with optics,
building optical instruments, or just learning, this is the
book for you.Here is the main breakdown of the book:
The Optical Bench, Graphical Ray Tracing, Basic Optical
Math, All about Magnifiers, How to Condense and
Project Light, Optical Drawing Devices, Telescopes you
can Build, Homemade Telephoto Systems, and Fun with
Optics.Included is info on finding focal length, all kinds of info on different
types of lenses and their uses, image formation, testing, determining the
power of a magnifier, field of an eyepiece, make a telescope into a micro-
scope, all kinds of info on projectors, Camera Lucida, reflector and refrac-
tor telescopes and inexpensive pipe mounts and tripods, making cradles, info
on telephoto lenses and how they work and designs, how to make a simple
spectroscope, etc., etc. 192 pages of interesting and fun stuff to do with
optics. These are new and the latest edition.
M2291 $14.95
Bulbs/Lamps
FLAME TIP BULB, 2.2 VOLT, .25A, MINI SCREW BASE
Low voltage, works with 1-1/2 volt batteries or your
solar cells. Package of 4.
M2105P $0.65
8 WATT U-BEND TYPE FLUORESCENT BLACKLIGHT BULB
FTB-8T6-BL 8 Watt blacklight fluorescent bulb. Black
light is the popular term for ultraviolet energy near the
visible spectrum. Blacklights are used for a wide variety
of applications including color matching, curing, sanitiza-
tion, particle identification, art display, recreation,
automotive, R12 chemical leak detection, and lots of fun
stuff. We couldn't find these specific ones listed any-
where so we may be the only source for these replacement bulbs for your
blacklight devices. U Bend shape with 4 pin base. We've been told that
there are adapters that will allow you to screw these into a regular light
socket, but haven't found them yet. Unused.One of our customers advises
that this works in his 15 Watt Bug Zapper which needs UV!
M2138 $1.50 or 10 for $10.00
Page 18 - Bulbs/Lamps
To Order, call toll free: 1-877-7SURPLUS