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The YaesuMusen FT-401B

10/18/2015

2 Comments

 
"Boat Anchor" is an endearing term used to described old, obsolete Amateur Radio equipment. Typically this equipment was heavy and cumbersome due to the large transformers needed to convert the AC line voltage into the proper DC high voltages required for the vacuum tubes to operate. The equipment is so heavy it can be used as a boat anchor! 

Here is the latest edition to my "Boat Anchor" collection, a YaesuMusen FT-401B from the early 1970s. This rig is a hybrid, meaning that it uses transistors to handle many of the lower power tasks.  Back in the early 1970s transistor technology was not up to the task of handling high power duties so transmitter output in the FT-401B is achieved using vacuum tubes. 

The YaesuMusen FT-401B supports AM, SSB, and CW modulations and is capable of 560 W (PEP input) using SSB  and 430 W (input) using CW without the assistance of a linear power amplifier!

Eventually the YaesuMusen name was shortened to Yaesu for the US market. This rig is a great addition to my collection and I look forward to repairing it and getting it back to original spec!

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2 Comments
Rick duff
3/15/2018 10:55:40 pm

Hey. I'm working on getting a 401b myself very soon. It was the rig I used for Mars and my first hf rig as a ham in 83. Loved it but sold it when got married in 85. Hoping this one is working as specs and find out in about 2 weeks.. Rick kc5bbp

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HP2-H84 exam dumps link
3/25/2019 04:39:40 am

This rig is a hybrid, meaning that it uses transistors to handle many of the lower power tasks.

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    Who Writes This Blog?

    John is an IT professional from Cleveland, OH who enjoys amateur ​radio, ham radio, metal detecting, 
    computers, motorcycles and working with model trains in the Man Cave!


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