Passive Aircraft Monitor
The hit of the decade! Our patented receiver hears the entire aircraft band without any
tuning! Passive design has no LO, therefore
can be used on board aircraft! Perfect for
airshows, hears the active traffic as it happens! Available kit or factory assembled.
ABM1 Passive Aircraft Receiver Kit $89.95
Precision PC Plane Antennas
Our LPY series PC antennas
continue to be the favorite for
virtually all RF and wireless
• 400-1000 MHz Log Periodic
• 2.1-11.0 GHz Log Periodic
• 2. 4 GHz 8dB Yagi
• 1250-1300 MHz Yagi
• 2. 4 GHz 12 dB Patch
• 900-2600 MHz Log Periodic
• 915 MHz Yagi
From microwave links, wireless mics, 802.11 WAPs, to
RFID, we’ve got you covered. Check our site for complete specifications and details!
Laser Trip Sensor Alarm
LPYSeries Precision PC Plane Antennas from $29.95
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The SGC1 is one of our latest kits, and provides a great solution to the age-old problem: how can we easily correct inconsistent audio levels without negatively affecting the dynamics of the audio signal? The SGC1 circuit
implements a principle known as the "Platform Gain Principle," which was originally developed by CBS Labs
(what we now know as CBS in the TV and radio world) to allow transmitted audio levels to be automatically
adjusted to keep them within a desired range.
Think of it like an audio engineer, constantly adjusting the output level in order to limit highs that would be too
loud while boosting lower levels so that they can still be heard. You may think "oh, this is just another
limiter/compressor!" Not so! Here's the real trick: keeping the full dynamic range ratio of the output signal the
same as the original input - something the typical limiter/compressor can only dream of doing! The SGC1 can
be placed in just about any standard analog stereo line level audio circuit (the red and white RCA connectors or
the mini-phone connector) to keep the audio level within the desired range. It's also the perfect addition to any
of our hobby kit transmitters, allowing you to match levels between different audio sources while keeping lows
audible and preventing the highs from overdriving.
The SGC1 makes a great addition to any audio system where you need to keep levels from different sources
under control, but still make sure they all sound great! In addition to its useful basic function and great audio
performance, the SGC1 also boasts a front panel LED meter to give an indication of the relative level of the input
signal, plus a level control (also on the front panel) that allows you to adjust the controller to the min/max center point of your desired level range. And yes, it is a Stereo Gain Controller! Meaning that the levels of both the
left and right channels are monitored and adjusted equally, thereby maintaining the relative virtual position of
things like instruments, singers and speakers! When powered down the controller is automatically bypassed,
and will simply pass through the unchanged original audio, meaning no messing around with cables required if
you simply want to cut it out of the equation temporarily. There's even a front panel switch to disable the LED
display - perfect for situations where light can be distracting - like a darkened home-theatre! The entire unit is
housed in a slim attractive black textured aluminum case that is sure to complement your studio or home theatre. If you're looking for perfect audio levels, hire a broadcast audio engineer, but if that doesn't fit your budget, the SGC1 is the next best thing! Includes 15VDC world-wide power adapter.
SGC1 Stereo Audio Platform Gain Controller Kit, with Case and Power Supply $179.95
True laser protects over 500
yards! At last within the
reach of the hobbyist, this neat kit uses a standard
laser pointer (included) to provide both audible and
visual alert of a broken path. 5A relay makes it simple
to interface! Breakaway board to separate sections.
Audio Recorder & Player
Record and playback up to 8 minutes of
messages from this little board! Built-in
condenser mic plus line input, line &
speaker outputs. Adjustable sample rate
for recording quality. 4-switch operation that can be
remote controlled! Runs on 9-12VDC at 500mA.
K8094 Audio Recorder/Player Kit $32.95
AC121 12VDC 1A Regulated Supply $9.95
Go green with our new
12VDC 1A regulated supply.
Worldwide input 100-
240VAC with a Level-V efficiency! It gets even better,
includes DUAL ferrite cores
Water Sensor Alarm
This little $7 kit really shined during Sandy!
Simply mount the alarm where you want to
detect water level problems. When the water
level rises it touches the contacts and the
alarm goes off! Sensor can even be remotely
located. Runs on a 9V battery (not included).
MK108 Water Sensor Alarm Kit $6.95
Electronic Watch Dog
K2655 Electronic Watch Dog Kit $39.95
A barking dog on a PC board! And
you don’t have to feed it! Generates 2 different selectable barking dog sounds. Plus a
built-in mic senses noise and can be set to
bark when it hears it! Adjustable sensitivity...
unlike my Greyhound and Boxer! 9-12VDC.
Beginners To Advanced... It’s Fun!
For over 4 decades we’ve become famous for making
electronics fun, while at the same time making it a
great learning experience. As technology has changed
over these years, we have continued that goal!
PL130A Gives you 130 different electronic projects
together with a comprehensive learning manual
describing the theory behind all the projects.
PL200 Includes 200 very creative fun projects and
includes a neat interactive front panel with 2 controls,
speaker, LED display and a meter.
PL300 Jump up to 300 separate projects that
start walking you through the learning phase of digital
PL500 The ultimate electronics lab that includes
500 separate projects that cover it all, from the basics
all the way to digital programming.
SP1A Whether young or old, there’s always a
need to hone your soldering skills. Either learn from
scratch or consider it a refresher, and end up with a
neat little project when you’re done!
SM200K Move up to Surface Mount Technology
(SMT) soldering, and learn exactly how to solder
those tiny little components to a board!
AMFM108K We not only take you through AM and FM
radio theory but we guide you through IC’s. When
you’re done you’ve built yourself an IC based AM/FM
radio that works great!
AM2 Learn the complete theory of AM broadcast radio and end up with a highly sensitive AM radio
AMFM7 Step up to AM/FM with this multi-band
lab and learn the basics of both bands. The FM tuner
is factory assembled and aligned!
SR3 Enter the world of SWL with this shortwave radio learning lab covering 6-8MHz and 12-
AK870 One of the most exciting electronic learning kits that the kids will love! Build a complete RC
speedster from the ground up! 7 remote functions!
PL130A 130-In-One Lab Kit $39.95
PL200 200-In-One Lab Kit $84.95
PL300 300-In-One Lab Kit $109.95
PL500 500-In-One Lab Kit $249.95
SP1A Through Hole Soldering Lab $9.95
SM200K SMT Practical Soldering Lab $22.95
AMFM108K AM/FM IC Lab Kit & Course $36.95
AM2 AM Radio Learning Lab $11.95
AMFM7 AM/FM Radio Learning Lab $12.95
SR3 Short Wave Radio Learning Lab $16.95
AK870 RC Speedster Car Kit $29.95
; Learn, build, and enjoy!
; 130, 200, 300, & 500 in one electronic labs!
; Practical through hole and SMT soldering labs!
; Integrated circuit AM/FM radio lab!
; AM, AM/FM, and SWL radio labs!
; Radio Controlled (RC) car!
; Beginner’s non-soldering kits!
AMFM7 SR3 AK870
Stereo Audio Platform Gain Controller
Ramsey Kits Are Always Cool, Even In The Summer Heat!
; Stereo audio processing while preserving
; True stereo control keeps virtual sonic source
; Automatic set-and-forget operation!
; Auto-bypass restores original levels when
power is turned off!
; Unbalanced RCA and 3.5mm stereo input
and output line level jacks!
; Built-in bar graph indication of signal level
with display mute!
Your Full-Time Audio Engineer...
Without the Payroll!
There’s only so much room on these two
pages, so check it all out in our new virtual electronic catalog! Flip through the
pages and search with ease! Visit
LTS1 Laser Trip Sensor Alarm Kit $29.95
Complete with cable &
connector... ready to use!