Nuts and Volts - April 2015

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

www.ramseycatalog.com

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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

Signal Magnet Antenna

The impossible AM radio antenna that pulls in the stations and removes the noise, interference, and static crashes from your radio! Also helps that pesky HD AM Radio stay locked! Also available factory assembled.

SM100 Signal Magnet Antenna Kit $89.95

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

Active Receive Antenna

The popular antenna for the serious DX’ers works on all bands - shortwave, HF, VHF, and UHF yet performs like a 60’ long wire antenna! Provides over 15dB of gain, and includes auto-off RF bypass and front panel gain control.

AA7C Active Antenna Kit $59.95

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. Assmb.

PR2 Broadband RF Preamp $69.95

Tunable FM Stereo Transmitter Kit

Here is the famous entry-level kit that will teach the basics of FM Broadcast transmission while finding many uses around the home or dorm room.

The FM10C has plenty of power to cover your home, backyard, or city block and tunes through the entire

88-108MHz band in three separate ranges with a tuned LC circuit. Runs on a 9V battery or optional AC power adapter.

(Note: The FM10C 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 FM10C.)

FM25B Synth FM Stereo Xmtr Kit $119.95

FM Low Pass Filter

FMLP1 FM Low Pass Filter Kit $25.95

Customers have complained about “dirty” imported FM broadcasters and exciters, so we developed this low pass filter based on our PX50 broadcast xmtr. Really cleans up your output, and connects easily between your transmitter & antenna. Maximum input power is 50 watts.

Collinear Vertical FM Antenna Our 5/8 wave omni antenna has been the standard for LPFM installations worldwide.

Provides 3.4dB gain while keeping the signal radiation low to the horizon for maximum range. Field tuneable over the entire FM range for a perfect match. SO239 connector for PL259 plug.

FMA200E Omnidirectional FM Antenna $119.95

Synthesized FM Stereo Transmitter Kit

The FM25 has been the hobbyist’s standard for FM synthesized stereo transmitters for more than two decades!

Just plug in the stereo left/right audio from your MP3 player, CD player, or computer, and broadcast it on any frequency in the standard FM broadcast band.

The sound quality and stereo separation of this little transmitter will keep the pickiest audiophile happy.

The FM25B features a PIC microprocessor for easy frequency programming through board mounted DIP switches. The transmit frequency is Phase Locked Loop (PLL) controlled for unparalleled stability making frequency drift a thing of the past, extremely critical for digital tuners. The RF output level is adjustable from

5u W to 25 m W via a potentiometer. Use the built-in whip antenna or use an external antenna with the standard "F" external antenna connector on the rear panel. Just plug it in and you're on the air.

(Note: The FM25B 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 FM25B.)

Tru-Match FM Antenna

TM100 Tru-Match FM Antenna Kit $59.95

The unique PVC waterproof design has made the TM100 one of the most reliable antennas available for the private broadcaster! Broadband over the entire 88-108MHz range makes installation a breeze without any tuning. Easy “F” connector termination.

The true professional workhorse of our FM Stereo transmitter line, the FM100B has become the transmitter of choice for both amateurs and professionals around the world. From the serious hobbyist to churches, drive-in theaters, colleges and schools, it continues to be the leader. Not just a transmitter, the FM100B is a fully functional radio station and provides everything but the audio input and antenna system! Just add that and you’re on the air!

This professional synthesized transmitter is adjustable directly from the front panel with a large LED digital read-out of the operating frequency. Just enter the setup mode and set your frequency. Once selected and locked you are assured of a rock stable carrier with zero drift. The power output is continuously adjustable throughout the power range of the model selected. In addition, a new layer of anti-static protection for the final RF amplifier stage and audio inputs has been added to protect you from sudden static and power surges.

Audio quality is equally impressive. A precision active low-pass brick wall audio filter and peak level limiters give your signal maximum "punch" while preventing overmodulation. Two sets of rear panel stereo line level inputs are provided with front panel level control for both. Standard unbalanced “RCA” line inputs are used to make it simple to connect to the audio output of your computer, MP3 player, DVD player, cassette deck or any other consumer audio source. Get even more creative and use our K8094 for digital storage and playback of short announcements and ID’s! In addition to the line level inputs, there is a separate front panel microphone input.

All three inputs have independent level controls, eliminating the need for a separate audio mixer!

Just pot-up the source control when ready, and cross fade to the 2nd line input or mic! It’s that simple! In addition to the dual stereo line inputs, a stereo monitor output is provided. This is perfect to drive studio monitors or local in-house PA systems. The FM100B series includes an attractive metal case, whip antenna and built in 110/220VAC power supply. A BNC connector is also provided for an external antenna. Check out our Tru-Match FM antenna kit, for the perfect mate to the FM100B transmitter. We also offer a high power kit as well as an export-only assembled version that provides a variable RF output power up to 1 watt. The 1 watt unit must utilize an external antenna properly matched to the operating frequency to maintain a proper VSWR to protect the transmitter.

(Note: The FM100B and FM100BEX are do-it-yourself learning kits that you assemble. The end user is responsible for complying with all FCC rules & regulations within the US or any regulations of their respective governing body. The FM100BWT is for export use and can only be shipped to locations outside the continental US, valid APO/FPO addresses or valid customs brokers for documented end delivery outside the continental US.)

✔ PLL synthesized for drift-free operation

✔ Built-in mixer - 2 line inputs and one microphone input, line level monitor output!

✔ Frequency range 88.0 to 108.0, 100 kHz steps

✔ Precision active low-pass “brick wall” audio filter!

✔ Dual LED bar graph audio level meters!

✔ Automatic adjustable microphone ducking!

✔ Easy to build through-hole design!

FM100B Super-Pro FM Stereo Radio Station Kit, 5u W to 25m W Output $239.95

FM100BEX Super-Pro FM Stereo Radio Station Kit, 5u W to 1W Output $299.95

Super-Pro FM Stereo Radio Station Our next generation of classic Nixie tube clocks perfectly mesh today's technology with the Nixie era technology of the 60's. Of course, features you'd expect with a typical clock are all supported with the Nixie clock... and a whole lot more!

The clocks are programmable for 12 or 24 hour mode, various AM/PM indications, programmable leading zero blanking, and include a programmable alarm with snooze as well as date display, 4 or 6 tube, kit or assembled!

We then jumped the technological time line of the 60's Nixie displays by adding the latest multi-colored LEDs to the base of the Nixie tubes to provide hundreds of illumination colors to highlight the glass tubes! The LED lighting can be programmed to any color and brightness combination of the colors red, green, or blue to suit your mood or environment.

Then we leaped over the technological time line by integrating an optional GPS time base reference for the ultimate in clock accuracy! The small optional GPS receiver module is factory assembled and tested, and plugs directly into the back of the clock to give your Nixie clock accuracy you could only dream of!

The clocks are available in our signature hand rubbed Teak & Maple, or futuristic clear acrylic bases. You also have your choice of IN- 14 or highly sought after IN- 8-2 nixie tubes (for the 6-tube clock).