Philmore Manufacturing Company, Inc. div. of LKG Industries of Rockford, Illinois USA
Copyright © 2003-2005 all rights reserved

KITS-HAM STUFF
The kits listed here are part of our Datak Division DATAKITS. All kits are complete with all parts needed including printed circuit boards and clear instructions. We do not recommend Datakits to inexperienced persons that will not know about product recognition and polarity, industry markings, proper soldering techniques etc. Beginners should find an experienced person to help them learn. Although our kits are very complete, we do not provide step-by-step instructions that a beginner will be able to follow without difficulty. .

for builders that are  HAMS or SWL’s only

(Receiver) R.F. Amplifier Kit        (Click on any photo for larger view)

A small circuit, using the Mar-6 Amplifier IC, this kit will provide as much as 20 db gain. Connect at receiving antenna input; will boost signals from 1 MHz to 1000mHz; two RF amplifier kits may be cascaded for even greater gain. Instructions tell how to substitute a couple of capacitors for use at low, broadcast-band frequencies. Use with Scanners, Ham receivers, SWL receiver etc. You could add a metal case and RF connectors for permanent use. May be used to boost signal for ‘scope or frequency counter as well.

        No.80-045 R.F. Amp kit

PLL Experimenter Kit from kHz to 185mHz (Phase Locked Loop)

An exciting circuit, the PLL Experimenter kit may be used for making a stable AM or FM transmitter, a Signal Generator (from low kHz to about 185mHz), a QRP Ham transmitter, circuit diagrams for all of these are included. What you get is a very high quality PLL circuit module, with touch-tone style keyboard (to set frequency) and you will have to add the components for the circuits mentioned above. Crystals can be difficult to find and costly; here is the answer. Not a beginners kit; intended for the serious experimenter, Hams or very advanced beginner. Operation from 8 to 12V DC; a nine volt battery is ideal. Fine tuning in 10 kHz steps. Extra room on board for added components. This circuit is really worth having!

         No. 80-035

Amateur Radio
Receiver Kits (CW, SSB)
(Ham Radio bands)

CLICK PHOTO FOR LARGER VIEW

Compact and easy to build and will receive an entire ham allocation in the band, CW and SSB. Great for monitoring W1AW code practice, ease-dropping on Nets etc. Operates on a 9 Volt battery, and has audio output enough to drive a speaker; or, use with headset. These circuits employ a unique three-pot* Varactor tuning system. You can set the ends of the band that you wish to receive; or, receive all of the band. The advantage to receiving just a portion (say just CW or just SSB) is that the tuning becomes much more precise and can eliminate adding an expensive ten turn potentiometer in order to achieve fine tuning. The PC board size is 3" by 3", which will fit nicely in a number of cases along with a battery. You will need to find your own (2)knobs, antenna connector (BNC, UHF, Fahnstock etc.) speaker (8ohm) and case.

20-Meter Receiver Kit ………………… No. 80-1420

30-Meter Receiver Kit…………………. No. 80-1430

40-Meter Receiver Kit…………………. No. 80-1440
* Photo is of a prototype and the finished kits have three pots and look a bit different.
 A new photo will soon be taken to replace the one above.

VFO KITS, for Ham Radio
 Two Kits Here are two kits that are a lot of fun to build and can be used in a number of Amateur Radio projects. Not sure what to do with a VFO? Well, included with the VFO kits are schematics for a transmitter and receiver. Or use the VFO for your own projects. The circuit is a Clapp Oscillator and our designer is proud of his "triple-pot" circuit design. Two of the pots are trimmers, used to select the segment of the band that you want to tune. Select just the CW portion of the band, SSB portion or the entire band. The narrower slice of the band that you select, the finer the main tuning will be. Which can eliminate a costly ten turn pot, vernier dials etc. These are ideal VFO circuits for QRP rigs.

 

40-METERS VFO Kit  

Tunes to from below 7.00 MHz. and up to about 7.300 MHz.. Included is information for making the circuit into a 30 meter VFO with some additional parts that you supply. Provision has been made for RIT/XIT offset. Buffered output; board size 1.6" x 3.0", 12V DC operation.

40-Meter VFO Kit…………… No. 80-1404

 

  

80-METERS VFO Kit

Tunes from below 3.5mHz up to about 4.0 MHz.. Provision has been made for RIT/XIT offset. Buffered output; board size 1.6" x 3.0" , 12V DC operation.

80-Meter VFO Kit……………. No. 80-1408

 

Mini-VOX & Relay Kit (Sound Activated Switch)

(Ok, so this is not a pure "Ham" kit; but you might find it useful if your rig does not have VOX or if it does not work quite right.)

For the uninitiated, VOX = Voice Activated Switch. This is a switch (relay) that may be activated with any sound, including the human voice. A very sensitive circuit that may be adjusted to react to very low volume sounds or a yell or hand clap. While a VOX is often used to activate a sound recorder, it may be used to trigger an alarm (the mike easily picks up vibrations in windows, wall or door), activate a video camera, radio transmitter or simply turn on a light. The relay will release after a few seconds of silence, holding as long as sound continues. (hold time may be changed up to 30 seconds) Operates on 12V DC and very low current.

            No. 80-126 Mini-VOX Relay kit.

Off to the Other Kits Index page HERE
Hams that build circuits may want to see our Protoboards.