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Radio and Test Equipment
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Formerly Maintained by Robert Meister WA1MIK
Currently Maintained by Mike Morris WA6ILQ
I know very little about this equipment so please don't ask!
 		   

News Flash from Ramsey Electronics!
"Following our well respected predecessors like Heathkit, KnightKit, Eico, and others in the past, we are discontinuing our Hobby Kit Group on January 1, 2016."
Read more about this on their web site by clicking the logo above.
Most of those products are now being sold and distributed through Amazon.com,
where you could also benefit from free shipping (with a PRIME membership).
The kit web site is gone, the remaining stock is on Amazon until it is gone.

If anyone has a manual PDF that we don't have please send it to the page maintainer!
Some of the mauals, like the DTMF decoder, do not have schemactics.   If anyone would like to contribute a schematic we will add it to the kit information.


Radio Products and Accessories:

BN9 Super-Snoop Amplifier kit manual   250 kB PDF file
This is a simple 2.5w LM380 based audio booster amp that runs off of 12vDC and amplifies to speaker level.
FTR-146 2 Meter Amateur PLL Synthesized FM Transceiver manual   10.6 MB PDF file
This is the kit assembly and instruction manual. This 6-channel radio has true/direct FM, is 9600 BPS capable, and has PIN-diode T/R switching.
Same as above, oriented better for display   9 MB PDF
FX-146 2 Meter Amateur PLL Synthesized FM Transceiver manual   3.2 MB PDF file
This is the kit assembly and instruction manual. This 5 watt, 12-channel radio is diode-programmable, has true/direct FM, is 9600 BPS capable, and has PIN-diode T/R switching.
FX-146 2 Meter Amateur PLL Synthesized FM Transceiver schematic   185 kB PDF file
This is the schematic diagram that goes with the above manual.
FX-50 6 Meter Amateur PLL Synthesized FM Transceiver manual   720 kB PDF file
This is the kit assembly and instruction manual. This 5 watt, 12-channel radio is diode-programmable, has true/direct FM, is 9600 BPS capable, and has PIN-diode T/R switching.
PA-1 two meter power amplifier kit manual   319 kB PDF file
1 watt in gets you 10 watts out, maximim drive of 8 watts, maximum output of 35 - 40 watts.
PR-10 two meter low noise preamp kit   272 kB PDF file
1 db Noise Figure, 20 db Gain. Operates from 9 to 15 volts input.
PR-20 222 MHz low noise preamp kit   259 kB PDF file
1 db Noise Figure, 16 db Gain. Operates from 9 to 15 volts input.
PR-40 440 MHz low noise preamp kit   280 kB PDF file
1 db Noise Figure, 10 db Gain. Operates from 9 to 15 volts input.
PR-100 VHF Low Noise Preamp Kit Manual   570 kB PDF file
QT1 CTCSS encoder-decoder kit manual   360 kB PDF file.
A simple MX-Comm chip based circuit that handles any of 39 standard tones. This circuit is easily duplicated on a piece of perf-board. The tone is selected using a 6-pin jumper block or a 6-position DIP switch. The tone chart is reproduced here as a separate PDF or it can be found on page 13.
TT7 Touch Tone decoder kit manual   300 kB PDF file.
This simple circuit feeds the audio to a Motorola 145436 touch tone decoder chip which decodes it to 4-bit binary, and uses a 74LS154 chip to provide 1-of-16 out. That can drive LEDs (displays) or relays. When an output is selected, the pin is pulled to ground by the output chip.


Test Equipment:

COM3 Service Monitor Owner's manual   3.54 MB PDF file
COM3010 Service Monitor User Guide   2.2 MB PDF file
SM-1 Automatic SINAD Test Set Instruction manual   560 kB PDF file

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This page created from Other Manufacturers and Test Equipment on 24-Sept-2012

This web page, this web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors. All Rights Reserved, including that of paper and web publication elsewhere.