590 Fishers Station Drive
Victor, NY 14564
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10% off your order!
Premium Synthesized FM Stereo Transmitter Kit
For more than a decade we’ve been the leader in hobbyist FM
radio transmitters. We told our engineers we wanted a new
technology transmitter that would provide FM100 series quality
without the advanced mixer features. They took it as a challenge
and designed not one, but T WO transmitters!
For more than a decade we’ve been the leader in hobbyist FM radio transmitters. The FM30B is designed using
through-hole technology and components and is available only as a do-it-yourself kit with a 25m W output very
similar to our FM25 series. Then the engineers redesigned their brand-new design using surface mount technology (SMT) for a very special factory assembled and tested FM35BWT version with 1W output for our export only
market! All settings can be changed without taking the cover off! Enter the setup mode from the front panel and
step through the menu to make all of your adjustments. A two line LCD display shows you all the settings! In
addition to the LCD display, a front panel LED indicates PLL lock so you know you are transmitting.
Besides frequency selection, front panel control and display gives you 256 steps of audio volume (left and right
combined) as well as RF output power. A separate balance setting compensates for left/right differences in
audio level. In addition to settings, the LCD display shows you “Quality of Signal” to help you set your levels for
optimum sound quality. And of course, all settings are stored in non-volatile memory for future use! Both the
FM30B and FM35BWT operate on 13. 8 to 16VDC and include a 15VDC plug-in power supply. (Note: After assembly
of this do-it-yourself hobby kit, the user is responsible for complying with all FCC rules & regulations within the US, or any regulations of their respective governing body. FM35BWT is for export use and can only be shipped to locations outside the continental
US or valid APO/FPO addresses or valid customs brokers for end delivery outside the continental US.)
FM30B Digital FM Stereo Transmitter Kit, 0-25m W, Black $199.95
FM35BWT Digital FM Stereo Transmitter, Assembled, 0-1W, Black (Export ONLY) $299.95
The AM25 is not
your ordinary hobbyist AM transmitter!
The AM broadcast band
is quite alive and well, and is
still considered the home of talk
radio. For years the AM band has been a popular
place for community broadcasts, in-home broadcasts,
and other local information broadcasts. Now you can
have a professional synthesized AM transmitter at the
cost of a hobby unit!
The AM25 operates anywhere within the standard AM
broadcast band, and is easily set to any clear channel
in your area. The design is similar to that of a commercial radio transmitter, so while you build it you’ll
learn how the “big guys” operate. It is widely used by
schools - standard output is 100m W with range up to
¼ mile and is jumper settable for higher output where
There is no tuning or tweaking involved with the
AM25. The PLL synthesized frequency is easily set
with dip-switches and is rock solid without any drift,
just like our FM25B. This is critical for any digital radio
The transmitter accepts line level input from any audio
source including CD players, MP3 players, computers,
etc. Includes matching case & knob set and 110VAC
power supply. Case measures 5” W x 1½”H x 5¼”D.
(Note: The AM25B is a do-it-yourself learning kit that you
assemble. Please remember that the end user is responsible
for complying with all FCC rules & regulations within the US, or
any regulations of their respective governing body in regards to
the application and use of the AM25).
The famous RF preamp that’s been
written up in the radio & electronics
magazines! This super broadband preamp
covers 100 KHz to 1000 MHz! Unconditionally stable
gain is greater than 16dB while noise is less than 4dB!
50-75 ohm input. Runs on 12-15 VDC.
SA7 RF Preamp Kit $16.95
Touch on, touch off, or momentary
touch hold, it’s your choice with this
little kit! Uses CMOS technology.
Actually includes TWO totally separate touch circuits
on the board! Drives any low voltage load up to
100mA. Runs on 6-12 VDC.
TS1 Touch Switch Kit $9.95 AM25 Synthesized AM Transmitter Kit $99.95
Mad Blaster Warble Alarm
If you need to simply get attention, the “Mad Blaster” is the
answer, producing a LOUD ear
shattering raucous racket! Super for
car and home alarms as well. Drives
any speaker. Runs on 9-12VDC.
MB1 Mad Blaster Warble Alarm Kit $9.95
Optically Isolated Module
The hobbyist's headache solver!
Converts any AC or DC signal to
logic level. The beauty is that
the input and output are totally isolated from each other! Output can drive
up to 150mA at 40VDC.
OM2 Optically Isolated Module Kit $16.95
Automatic VOX Voice Switch
This popular VOX switch provides a switched output when
it “hears” sound! Use it to key
a transmitter, turn on lights, or
anything... all controlled by your
voice! Runs on 6-12VDC.
VS1 Automatic VOX Switch Kit $9.95
20 Watt Mini Audio Amp
Delivers a super clean 20W output
from one SMT package! Ultra efficient class D design produces no heat.
PCB can be snapped into a small circle for
special applications. Runs on 18VDC for rated
output, or down to 10VDC for reduced output.
UAM2 20W Subminiature Amp Kit $52.95
HV Plasma Generator
Generate 2” sparks to a handheld
screwdriver! Light fluorescent tubes
without wires! This plasma generator creates up to 25kV at 20kHz from a
solid state circuit! Build plasma bulbs from
regular bulbs and more! Runs on 16VAC or 5-24VDC.
PG13 HV Plasma Generator Kit $64.95
Air Blasting Ion Generator
Generates negative ions along with a
hefty blast of fresh air, all without any
noise! The steady state DC voltage
generates 7.5kV DC negative at 400uA,
and that’s LOTS of ions! Includes 7 wind
tubes for max air! Runs on 12-15VDC.
IG7 Ion Generator Kit $64.95
Speedy Speed Radar Gun
Our famous Speedy radar gun
teaches you doppler effect the
fun way! Digital readout displays in MPH, KPH, or FPS. You
supply two coffee cans! Runs on
12VDC or our AC121 supply.
SG7 Speed Radar Gun Kit $74.95
Tri-Field Meter Kit
“See” electrical, magnetic, and RF fields as
a graphical LED display on the front panel!
Use it to detect these fields in your
house, find RF sources, you name it.
Featured on CBS’s Ghost Whisperer to
detect the presence of ghosts! Req’s 4 AAA batteries.
TFM3C Tri-Field Meter Kit $74.95
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
The kit has a pulsing 80 volt tickle
output and a mischievous blinking LED. And who can resist a
blinking light and an unlabeled
switch! Great fun for your desk,
“Hey, I told you not to touch!” Runs on 3-6 VDC.
TS4 Tickle Stick Kit $9.95
What an attention getter! Just hook
up a speaker, battery and a switch.
Close the switch for an upward
wail and release it for the downward return. One of our most popular
minikits! Runs on 9V battery.
SM3 Electronic Siren Kit $7.95
The EASY antenna, regardless of frequency! This active RX antenna
performs like a 60’ long wire.
Works on all bands, and provides
over 15dB of gain. Features auto-bypass when turned off. Runs on 9V battery.
AA7C Active Receive Antenna Kit $59.95
Code Practice Oscillator
A great starter kit for young and old!
Learn kit building while building a great little CW practice
oscillator to learn the code!
Built-in key, built in speaker, and
audio tone adjust! Runs on a 9V battery.
CPO3 Code Practice Oscillator Kit $17.95
Precision PC Plane Antennas
Our LPY series PC antennas continue to be the favorite for virtually all RF and wireless applications. From microwave links,
wireless mics, to RFID, we’ve got you
covered. Check our site for details!
LPYSeries Precision PC Plane Antennas from $29.95
Broadband RF Preamp
Need to “perk-up” your counter or
other equipment to read weak signals? This preamp has low noise and
yet provides 25dB gain from 1MHz to well
over 1GHz. Output can reach 100m W! Runs on
12 volts AC or DC or the included 110VAC PS. Asmb.
PR2 Broadband RF Preamp $69.95
✔ PLL synthesized for drift free operation
✔ Front panel digital control and display of all settings
✔ Professional metal case for noise-free operation
✔ EMI filtering on audio and power inputs
Active Receive Antenna