Ramsey Electronics 2012 Catalog - Home

64
Learning & Educational
AM/FM/SW Radio Learning Kits
✔ Learn to build your own AM, AM/FM or SW
radio!
✔ Discover how radios work!
KIT
✔ Listen to the results!
✔ Safe solderless assembly!
As the “Little Brothers” to our Lab Kits, our Radio Learning Kits teach you the fundamentals
of modern radio theory and operation, and give you a working radio
when you’re finished! There’s nothing like the feeling of accomplishment when
you finish the kit, plug in the battery, and hear it work! Yes, you did it yourself! Our
AM2 AMFM7
SR3
Radio Kits are available in AM Broadcast, AM/FM Broadcast, and AM Shortwave models. Take your pick! All operate on a standard 9V battery (not included).
AM RADIO
Our AM2 AM Radio kit uses two transistors, 4 resistors and 5 capacitors including a variable capacitor to provide a highly sensitive AM Broadcast Radio. It covers 520 KHz to 1625
KHz and is easy to assemble with safe, solderless connections. The 18 page comprehensive learning and assembly manual covers everything from theory to parts identification and
operation.
AM/FM RADIO
Our AMFM7 AM/FM Radio kit is the next step up from our AM2 kit above. It features the same quality AM radio and adds a factory assembled and aligned FM tuner to cover the
88 MHz to 108 MHz FM broadcast band. Utilizes 2 transistors, 5 resistors, 6 capacitors, 1 diode, and 1 coil to provide reception in either band. The AMFM7 is easy to assemble
with safe, solderless connections. The 20 page comprehensive learning and assembly manual covers everything from theory to parts identification and operation.
AM SHORTWAVE
Our SR3 Dual Band AM Shortwave Radio Kit takes you away from the local AM/FM broadcasters and brings you into the exciting world of Shortwave Radio Listening (SWL)! The
preassembled and aligned tuner section adds to the 2 antennas, 4 capacitors, 4 resistors, 1 transistor, and 1 variable capacitor to provide a sensitive Shortwave Radio covering 6
MHz to 8 MHz and 12 MHz to 18 MHz. The SR3 is easy to assemble with safe, solderless connections. The 20 page comprehensive learning and assembly manual covers everything
from theory to parts identification and operation. Operates on a standard 9V battery (not included).
AM2 AM Radio Kit With Comprehensive Learning Manual $14.95
AM/FM7 AM/FM Radio Kit With Comprehensive Learning Manual $17.95
SR3 AM Dual Band Shortwave Radio Kit With Comprehensive Learning Manual $17.95
KIT
Start With The Basics...
And Have Fun Doing It!
Entry Level Learning Kits
✔ Learn the basics of electronics and electricity!
✔ Discover how to listen to AM radio without a battery!
✔ Understand and build a working motor!
✔ Learn how and why alarm bells work... and build one!
Go back in time and discover how radio was first received! Learn the basics of electric motors including forward and reverse
action. Plus, while everyone has heard them, learn exactly how an alarm bell works and then build one yourself! These beginner
kits are ideal for the inquisitive mind that wants to know “how and why it works”. No previous experience in electricity or electronics is required
and all kits use safe, solderless connections.
CRYSTAL RADIO SET
The crystal radio was invented in 1901. It is still the basis of modern-day radio and communications equipment and lives on in a wide variety of radio systems. Go back in time,
and learn how radio detection was first done! Without a battery or power supply, you will hear AM broadcasts with your Crystal Radio Set! They contain few parts yet teach many
concepts. The comprehensive 16 page manual covers everything from how it works to why it works, with illustrated assembly instructions. Assembly is easy with solderless connections,
and no previous electronic experience is necessary. Relive history with a Crystal Set today!
MOTOR ACTION KIT
Learn the basics of an electric motor with our MA1 Motor Action Kit. Learn what makes motors spin, how to control forward and reverse in a motor, and then build one that
works! Includes a fan blade and a color disk to learn how to mix color with a spinning disk! This is a great kit for the kids and for the beginner to learn just what makes the world
go round! Easy assembly with solderless connections. Requires two AA batteries (not included).
BELL ACTION KIT
Ding-a-ling... is that a bell? Yep, we’ve all heard them but do you know exactly how they work? Our BA1 Bell Action Kit is a perfect learning kit for the beginner or the curious!
Learn what makes an electronic alarm bell ring, explore how electromagnetism is used, and how you can change the ringing characteristics of a bell! This kit is fun and safe, using
solderless connections. Requires two AA batteries (not included).
CS2 Crystal Radio Kit $12.95
MA1 Motor Action Kit $11.95
BA1 Bell Action Kit $11.95
RAMSEY’S TEN COMMANDMENTS OF GOOD PC-BOARD SOLDERING
1. If the soldering iron tip is covered with burned rosin, it can’t heat your connection
very well.
2. If you heat only the wire and not the wire and PC trace together, a cold, bad connection
is likely.
3. If your soldering tip is big enough to bridge two adjoining connections, it probably will!
4. Dirty, grubby solder will contribute to dirty, grubby connections.
5. Any use of acid core (plumbers!) solder in electronics work will destroy everything...
DON’T USE IT!
6. A connection in a large area of PC-board copper requires more heat than one pin of an IC.
7. If your connection looks dull or brittle, it's no good.
8. If your connection looks like a ball instead of a shiny cone, it's no good.
9. Thin fresh shiny rosin core solder is easier to use for PC-board work than thicker “hardware store” solder.
10. Pre-tin any stranded wires leading in and out of your PC-board kit project. It will prevent problems later!
Through Hole
Soldering
Surface Mount
Soldering
GOOD
ROSIN
BAD