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FT-101E; Yaesu-Musen Co. Ltd. (ID = 1905342) Amat TRX FT-101E; Yaesu-Musen Co. Ltd. (ID = 295998) Amat TRX
FT-101E; Yaesu-Musen Co. Ltd. (ID = 775668) Amat TRX FT-101E; Yaesu-Musen Co. Ltd. (ID = 818354) Amat TRX
FT-101E; Yaesu-Musen Co. Ltd. (ID = 1429899) Amat TRX FT-101E; Yaesu-Musen Co. Ltd. (ID = 1518661) Amat TRX
FT-101E; Yaesu-Musen Co. Ltd. (ID = 2361238) Amat TRX FT-101E; Yaesu-Musen Co. Ltd. (ID = 2645971) Amat TRX
FT-101E; Yaesu-Musen Co. Ltd. (ID = 2645972) Amat TRX FT-101E; Yaesu-Musen Co. Ltd. (ID = 2645973) Amat TRX
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FT-101E; Yaesu-Musen Co. Ltd. (ID = 1905342) Amat TRX
Yaesu-Musen Co. Ltd.: FT-101E [Amat TRX] ID = 1905342 1400x874
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For model FT-101E, Yaesu-Musen Co. Ltd.; Tokyo
Country:  Japan
Manufacturer / Brand:  Yaesu-Musen Co. Ltd.; Tokyo
Year: 1975–1978 Category: Amateur TRX: Transmitter/Receiver (and Transceiver)
Valves / Tubes 3: 12BY7A 6JS6C 6JS6C
Semiconductors (the count is only for transistors) Semiconductors present.
Main principle Transceiver
Wave bands Wave Bands given in the notes.
Power type and voltage Line / Batteries (any type) / 100-234 / 12 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out 2 W (unknown quality)
from Model: FT-101E - Yaesu-Musen Co. Ltd.; Tokyo
Material Metal case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 340 x 153 x 285 mm / 13.4 x 6 x 11.2 inch

Yaesu HF-Transceiver FT-101E.
Frequency range: 160 to 10 m HAM-Bands plus CB and reception of time-stations in the 10-MHz-range. Modes; SSB, CW, AM; Speech-processor built in; Pout: 90 W.
In Europe also sold as Sommerkamp FT-277E.

Net weight (2.2 lb = 1 kg) 19 kg / 41 lb 13.6 oz (41.85 lb)
Price in first year of sale 749.00 $
External source of data Eilert Menke

Model page created by a member from D. See "Data change" for further contributors.

All listed radios etc. from Yaesu-Musen Co. Ltd.; Tokyo
Here you find 278 models, 264 with images and 98 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.


Forum contributions about this model
Yaesu-Musen Co. Ltd.: FT-101E
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Yaesu FT-101E, notable Link (history & technical)
Eilert Menke
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yaesu: FT-101, finals replacement
Eilert Menke

From, author not known:

There will come a time when the finals in your FT101E will need replacing. These transceivers were originally equipped with 6JS6C tubes manufactured by NEC.
This tube's properties are slightly different from the 6JS6C tubes available today from American tube manufacturers. By the way, don't bother looking for tubes made by NEC. They got out of the business several years ago.

In order to use the "American" variety 6JS6's, a simple modification to the neutralization circuit must be made to the final section of the transceiver.

The modification consists of replacing the fixed value 100 pf 1000 VDC mica capacitor with a 10 pf 1000 VDC mica capacitor. This capacitor, C125, is in series with the 10 pf variable neutralizing capacitor off of the plate circuit.

If this modification has not already been completed on your rig, be sure to use a mica or silver mica of at least 1000 VDC. Do not substitute a different type, because the heat in the final compartment will change the value, and your tubes will fail prematurely. Also, be very careful to keep all leads short and in exactly the same orientation as the original capacitor.

Before reneutralizing, open the variable neutralizing capacitor all the way to minimum engagement and follow the neutralizing instructions in the manual. While dipping the plate, remember to adjust the neutralizing capacitor for equal value meter reading peaks (IC position) on both sides of the dip when tuning the "Plate" control.

Martin Crossley

DR OM Eilert, I think this information has also been published in England, in the RSGB Technical Topics book in around 1978.I also seem to recall an article a few years ago, pre-internet, in the RSGB magazine Radio Communication,giving details of using 6146B valves as replacements, with suitable valveholders, as these are proper transmitting valves, instead of over-run colour TV line-o/p valves, which were never used in the UK anyway, except in amateur transceivers. Then more recently, Svetlana producing an EL509/EL519 type which may be useable.

So, it looks like there are a few ways to keep these rigs ("FT101- the rig that Yaesu made, but also the rig which made Yaesu") going for anothe 3 decades! 



Yaesu-Musen Co. Ltd.: FT-101E
End of forum contributions about this model