By C. L. Maher, W4CLM Administrator Fox Tango International
**Additional contributions: Our sincere thanks to Wim Penders ( PA0PGA) and Dr. Malcolm Eiselman (NC4L)
for their dedication and contributions to the amateur radio community as well as their contributions to these pages.
The FT-102 Line
Transceiver of Champions
Introduced in 1982, the FT-102 is one of the finest amateur radio transceiver ever made for its time and still remains an excellent option to buying a more modern Multi~Kilo~Buck transceiver produced now being manufactured in the 21st century. Unfortunately for the FT-102 it did not last very long insofar as the US market. By years end (1984) Yaesu was clearing the way for other transceivers like the FT-757GX. Good marketing, dictates not having too many models from the same manufacturer competing with each other. Sporting three 6146 in the final amplifier stage can have its advantages over that of transistors. The concept of of the 3-tube final amplifier with negative feedback was indeed revolutionary for the amateur market, however tube type transceiver were on their way out by the mid 1980s and eventually the FT-102 was discontinued. The rig remains a favorite among those who have used them and it maintains a cult like following by those users in the know even to this day.
One of the first things that you notice about the FT-102 is it's use of three 6146 final amplifier tubes in the final amplifier tank circuit. The forgiving nature of the three 6146 finals to an occasional high VSWR with full output gives one peace of mind not always enjoyed by completely solid-state transceivers. The three 6146 tubes gives the FT-102 more consistent power output and improved reliability over tube transceivers produced in the past such as the FT-101 with its sweep tube finals. The FT-102 claims 10db of negative feedback with third order distortion of 40db down giving the transceiver one of the best sounding audio of any transceiver ever produced without the use of studio equalizers in use by the (ESSB) enhanced SSB audio crowd found on the amateur bands of today. My experience with this transceiver is that the longer its on the better it sounds and audio reports are fantastic.
Another eye catching feature of the FT-102 similar to the of the Yaesu FT-One, is its use of a dual front panel metering. The dual metering system provide simultaneous display of ALC voltage on one meter, along with monitoring of plate voltage, cathode current, power output and compression level of the processor on the multi meter providing for simplified monitoring of the transmitter PA. When it comes to knowing the FT-102, most likely the number one person in the county on this rig is Malcolm Eiselman NC4L ( Mal), one can hardly talk about the FT-102 without his name coming up. Malcolm came up with a nice modification for the meter lamps as noted in the photos below
Thanks to Malcolm for the photos
You can also visit Mal's FT-102 page see: Malcom's Web page
Everything you ever want to know about FT-102 Relays!
Installing New Relays in your FT-102
FT-102 Service Manual and Circuit Board Descriptions
For a complete summary of these pages and more you are invited to down load the Fox Tango FT-102 Survival guide compiled by Fox Tango Club member Wim Penders PA0PGA. We recommend you right click and save the file to your computer. You will need a copy of Adobe reader Version 6, 7 or later to view the guide.
Click here to download FT-102SG PDF file (12.3 MB)
**Our sincere thanks to Wim Penders ( PA0PGA) and Dr. Malcolm Eiselman (NC4L) for their dedication and contributions to amateur radio community and their contributions that were used to compile this FT-102 survival guide. Oh Yes, I guess I fit in there too! ~ C.L. Maher W4CLM Administrator Fox Tango Intl.
FT-102 Line Of Accessories
FC-102 Antenna Tuner FV-102 External VFO SP-102 Speaker patch
FT102 User's Group
Devoted entirely to the Yaesu (Sommerkamp) FT102 HF transceiver and its accessories
Join us as we explore further this classic transceiver. No need to operate the multiple menu stages. The FT-102 every control is labeled and what you see is what you get – so no confusion or accidental changes of the menus and you have to read the manual to find out how to get back to ground zero. Clean clear operation, low cost, reliable and will overall as a transceiver outperform anything under $10,000. As far as the transmit section there is nothing that outperforms the 102 at any price.
Please, join us if you are interested in this wonderful transceiver
We invite you to visit the Fox Tango Web site at http://www.foxtango.org
And join us at the Fox Tango Open Public Form http://www.foxtango.org/phpBB2/
Group Owners Fox Tango International
C.L. Maher W4CLM
Fox Tango International http://www.foxtango.org