Providing Fun Electronics
For Over 3 Decades!
The Building Blocks!
Audio/RF Signal Generator
✔ DDS and SMT technology!
✔ 0 Hz to 5 MHz at 0.1Hz resolution!
✔ 0 to 10V peak to peak output level
✔ Sine, Square, or Triangle waveform
Following our world famous SG550, we are proud to introduce the
SG560, the next generation signal generator!
To begin with we increased the frequency range all the way up to 5MHz and all the way down to 0Hz (yes, we
mean zero...or DC!) continuously in 0.1Hz steps across the entire range! Then we gave it a variable output level
all the way up to 10V peak to peak in either Sine, Square, or Triangle waveforms! You can also provide a DC
offset to the output to recreate TTL, 4000 series logic levels, low voltage logic levels, AC waveforms with a DC
component, or just plain AC signals!
SMT and DDS technology is used throughout the SG560 for ultimate performance and reliability. If you’re looking for a lab quality sig gen at a super hobbyist price, the brand new SG560 fits the bill...and a whole lot more!
SG560WT Audio/RF Signal Generator, Factory Assembled $329.95
The kit has a pulsing 80 volt
tickle output and a mischie-
vous blinking LED. And who
can resist a blinking light! Great
fun for your desk, “Hey, I told you not to touch!”
Runs on 3-6 VDC
TS4 Tickle Stick Kit
Super Snoop Amplifier
Super sensitive amplifier that will
pick up a pin drop at 15 feet! Full
2 watts output. Makes a great “big
ear” microphone. Runs on 6-15 VDC
BN9 Super Snoop Amp Kit
Hand Held Digital Scope With DVM Readout
✔ Digital waveform and measurement display!
✔ 10MHz and 40MHz sample rates!
✔ Backlit LCD display
✔ RS232 output (40MHz model only)
✔ Charger, case, probes included
We’ve seen a lot of portable scopes and scope/meters, and we’ve also seen the price tags!
They have always been way out of the reach and budget of the hobbyist. No more! Now for
close to the price of a good DMM you can have a personal scope that also has DVM readout
for dBm, dBV, DC, and True RMS! Frequency readout is also displayed on the screen through
markers, plus the scopes have two memories for digital storage.
The 40MHz model also includes an RS232 output and serial interface to capture the screen
display on your scope to your PC at the mere push of a button! These scopes
run on 5 standard AA Alkaline batteries (not included) which provide up to 20 hours of use.
You can also use rechargable AA NiMH batteries instead and they’ll be charged with the included power supply! Both units come with a custom foam lined high impact carrying case, set of
high quality scope probes, AC power adapter and a comprehensive user’s manual. If you’re
working with electronic circuits, automotive applications, audio and stereo applications or other
applications, the personal scope is for you...at a price that can’t be beat!
HPS10SE Personal Handheld 10MHz Digital Scope
HPS40 Personal Handheld 40MHz Digital Scope w/RS232
PS28 9VDC Power Supply/Charger
Produces a very pleasant, but
obnoxious, repetitive “plink, plink”
sound! Learn how a simple transistor
oscillator and a 555 timer can make such
a sound! Runs on 4-9 VDC.
EDF1 Dripping Faucet Kit
Our #1 Mini-Kit for 31 years!
Alternately flashes two jumbo red
LED’s. Great for signs, name badges,
model railroading, and more. Runs on 3-15 VDC.
BL1 LED Blinky Kit $7.95
Strappable to detect any single
DTMF digit. Provides a closure to
ground up to 20mA. Connect to
any speaker, detector or even a phone
line. Runs on 5 VDC.
TT7 DTMF Decoder Kit
Dual Display DMM With RS232 Output
✔ RS232 output to your PC!
✔ Digital and analog bargraph display
✔ Backlit LCD display with data hold
✔ Manual and auto ranging
✔ Includes probes, RS232 cable, & software
We gave you an inexpensive pocket DMM for under 20 bucks. Then we gave you a super
multi-purpose professional multimeter that measured virtually everything for 40 bucks. What’s
next, you ask? You won’t believe it! Everything PLUS RS232 serial data output for connection
to your PC! That’s right, now you can measure, control, and store your DMM and its readings
on a graphical display on your PC!
Features both auto and manual ranging with a large 3¾ digit display
with a 38 segment analog bargraph. Selectable backlight and data display hold features are also included. Plug in the provided DB9 serial cable to your PC,
load the included software, and you’re off and running with a remote control digital
multimeter from your PC! Includes standard test probes, temperature test probes, professional rubber holster, RS232 cable, installed 9V battery, Windows software CD, all in
a neat travel case.
DVM345DI Dual Display DMM With RS232 Output
Produces the upward and downward wail of a police siren.
Produces 5W output, and will drive
any speaker! Runs on 6-12 VDC.
SM3 Electronic Siren Kit
Build anything from a time delay
to an audio oscillator using the
versatile 555 timer chip! Comes
with lots of application ideas. Runs on
UT5 Universal Timer Kit
Voice activated (VOX) provides a
switched output when it hears a
sound. Great for a hands free PTT
switch, or to turn on a recorder or light! Runs on
6-12 VDC and drives a 100 mA load.
VS1 Voice Switch Kit
Sniff-It RF Detector Probe
✔ Use with any DMM or VOM to measure RF!
✔ Low cost RF measurement!
✔ Can also be used as a field strength meter
✔ 100kHz to 1000MHz!
The RF1 is a very sensitive RF detector probe that connects to any digital multimeter and provides a DC voltage output from weak RF signals. This allows very
easy tracing of low level RF signals that a counter can not pick up. Wide frequency coverage of 100 KHz to over 1000 MHz lets you track down most any
problem in transmitter chains, receiver stages, or even complex PLLs.
Uses exotic, low barrier microwave detector diodes to give exceptional sensitivity which can see signals down
to microwatt levels! A great low cost way of checking for RF. Fully assembled and tested, and includes standard banana plugs for use with any standard VOM, DMM or voltmeter. If you need to measure RF and don’t
want to spend big bucks, here you go!
RF Sniff-It Probe
Encodes OR decodes any tone 40
Hz to 5KHz! Add a small cap and it
will go as low as 10 Hz! Tunable with
a precision 20 turn pot. Runs on 5-12 VDC and
will drive any load up to 100 mA.
TD1 Encoder/Decoder Kit
Super broadband preamp from
100 KHz to 1000 MHz! Gain is
greater than 20dB while noise is less
than 4dB! 50-75 ohm input. Runs on 12-15 VDC.
SA7 RF Preamp Kit $19.95
Monthly Giveaways! Visitwww.ramseykits.com
Touch on, touch off, or momentary
touch hold, your choice! Uses CMOS
technology. Runs on 6-12 VDC and drives any
load up to 100 mA.
TS1 Touch Switch Kit