W0UI's

 Yaesu FT-401b

20-tube High Power Amateur Radio HF Transceiver

I bought my first Yaesu Musen transceiver in the fall of 1977

This radio, an FTdx560, performed wonderfully for the years I owned and operated it. 
It met every expectation I held for it..

I now own three Yaesu FT-401b  jewels now, they make terrific transceivers.

 

CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW

The Yaesu FT-401b 20-tube high-power HF amateur radio transceiver with matching Speaker/Phone Patch unit
I am not sure what the right "Crystal Filter" is for (it is apparently not the stock CW filter). Does anyone know what it is?
 
       

CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW
OWNERS MANUAL FOR Yaesu FT-401b HF transceiver
Pages 1-10 - Pages 11-20 - Schematic Diagram

I am preparing to begin restoration / realignment on my three FT-401b transceivers.
I expect to post comments and photos of my efforts on this page.
QUESTION:  Has anyone successfully restored / realigned one and have any tips to share with me?

 Please send me your comments, ideas or thoughts:  CLICK HERE TO EMAIL WOODY 

 The 6KD6 final tubes, a pair of old television sweep-tubes, provide plenty of power. 
When this radio was new, the tubes were plentiful and fairly inexpensive.

RESTORING AN FT-401b TRANSCEIVER
CLICK HERE to see Woody's restoration efforts page
- This is still a developing work, check back from time-to-time - 

L-to-R: FT401b, IFR FM/AM-1200s service monitor, Tektronix 2246 Oscope, older VTVM

CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW
SILVER FACED YAESU HISTORY

I thought it might be fun to see how this silver-faced radio progressed through the years so I began scrounging through my old QST magazines.
Below are copies of some of the ads I found while searching through old American Radio Relay League (ARRL) QST magazines.
CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW

Yaesu FTdx400 HF Transceiver ad from QST Sept. 1969 Yaesu FTdx560 HF Transceiver ad from QST Dec., 1969 Yaesu FTdx570 HF Transceiver ad from QST Dec., 1972 Yaesu FTdx401b HF Transceiver ad from QST Sept., 1974 Yaesu FT-401b HF Transceiver ad from QST Feb., 1976

The FTdx400 transceiver was first found in the January, 1968 QST and had a long run being last listed in November, 1969. The new price was listed at $599.

The FT-dx560 was introduced to amateur radio operators in the December, 1969 QST. It sold for $450. A matching FTdx2000 linear amplifier was also listed, selling for $230. The last ad for the '560 appeared in the summer of 1972.

The FT-dx570 replaced the 560's Automatic Noise Limiter with a  more advanced noise blanker. The first '570 ad appeared in the July, 1972 QST with a price of $550. In the April, 1973 QST Yaesu announces that it is opening its first office in the USA to enhance its sales effort here. The last ad for the FTdx570 as a new product was found in June, 1973.

The FTdx401 ads replace the '570 in the July, 1973 QST. Listing at $599, the radio had a compliment of matching components. The external VFO (FT401 $99) and matching speaker (SP401P $59) enhance its performance.

The FTdx401 was replaced in the February, 1974 QST with the FTdx401b model, also selling at $599. 
A matching linear amplifier, the FL2000b sold for $339.

The
FT-401b was the final iteration of the famous Yaesu silver-faced high-powered tube-type HF transceivers 
(that were released in the United States) was the Yaesu

This transceiver first appeared in the January, 1976 QST selling new for $599. Along with its compliment of additional equipment, it presented a full range of amateur radio equipment. This radio dropped the "FTdx" reference in the model name, a departure from previous marketing and re-added AM onto the SSB and CW modes. The CW filter (XF31c $45), base station microphone (YD844 $29), remote VFO (FV-401 $99) and Speaker/Phone Patch (SP401P $59) were also available.
  This transceiver was to be the end of their HF tube-type transceivers. One full page inside-back-cover ad was first published in the February, 1976 QST but it was not found as a new product listing after the Amateur Electronic Supply QST ad in the September, 1976 issue.

CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW

OTHER YAESU FTdx AND RELATED RIGS

There were also some other similar Yaesu radios sold in the international 
amateur radio community but not so common in the United States. 

FTdx-100

Pictured below from an eBay auction found in Australia, is the 80 through 10 meter FTdx100 apparently first manufactured in 1967. The radio runs CW-SSB-AM modes and is equipped with controls such as Volume, Squelch, RF Gain, RIT (clarifier), heater on/off, and others. A 2010 eBay sale of one of these radios (found in Canada) sold for over $700 (US).

An Australian example of the Yaesu FTdx-100 transceiver

FTdx-500
In the fall of 2010, I spotted this rig on eBay. Apparently it was made by Yaesu for the Swiss ham market.
- Click on the picture of the box to see the FTdx500 owners manual -

CLICK HERE TO SEE FTdx500 OWNERS MANUAL
FT-501

FT-501 (pictured below as found, for example, in Canada), that apparently never commonly made it into the American markets. 
An example of the Yaesu FT-501 found in Canada

Hams in much of the world were anxiously moving away from tube technologies and into the booming new solid-state environments, as was evident by the ads that were prevalent starting in the early 1970's. The Yaesu FT-101 series solid-state transceiver was a long time best seller.   

CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW

W0UI in 1991

Notice the Yaesu FTdx560

W0UI in 1989

Notice the old Yaesu FT-dx560

CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW

W0UI in 1977

My hamshack had its first computer addition during 1977 when I brought home a new Radio Shack TRS-80 Level One computer to learn about. This was during the CB boom and a 23-channel Realistic TRC-57 base station joined the lineup. Notice the Yaesu FTdx560. I had bought it used in 1977 from Long's Electronics in Georgia.

CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW

CLICK HERE FOR THE MAIN 4L RANCH WEB PAGE

Contact WOODY for questions or comments about this page via  email. 
All personal comments, pictures copyright 1996-2011 - R. Linwood (4L RANCH)
LAST MODIFIED:


Since 16 Nov 2009:


likeable stuff