Other Japanese Military Radio Sets
There are several other radio sets that I will mention very briefly as they do exist
and have had little written about them . It should be noted that while the Japanese
military, Army and Navy, developed and made most of their equipment at their own
factories, they did buy some equipment from civilian market especially at beginning of the
conflict. Radios were purchased from firms like Marconi, Telefunken, RCA, Tokyo Musen and
so on. Apart from their usual nomenclature system with designations like TYPE 94-3, They
named the civilian equipment with prefixes such as:
TMxx (Tokyo Musen)
TTK xx (Tokyo Tusin Kabusikigaisha)
However later in the war, especially the Navy, put some code number on their radio
nomenclature as shown in the examples below.
TYPE 96-1 Aircraft Radio (H1)
TYPE 96-2 Aircraft Radio (N2)
TYPE 96-3 Aircraft Radio (H3)
TYPE 2-3 Aircraft Radio (N3)
TYPE 3-5 Aircraft Radio (GS)
Mark 39 Type C
Transmitter and Mark 45 Type C Receiver
Listed in TM E11-227A but with out pictures. Covers 0.4 to 5.7 MC, transmitter weight is
11.24 lb., receiver weight is 30.86 and the Accessory box with contents weights 97 lb..
The set has an out put of 10 Watts. It was thought to be used for ground communication and
possibly communication with an aircraft. Power source was a hand generator and batteries
for the receiver.
Mark 53 Type C Receiver
0.4 to 5.754 MC using 5 plug in coils., CW, MCW, and voice, man packed set, using
miniature tubes., weight given as 11 lb. with batteries. Made by Tokyo Instrument Co., it
is a very compact regenerative receiver.
In addition to these sets, many other sets were turned up after the publication of TM
E11-227 A in December 1944
Model 92, Mark 3 Improvement 1
0.1 to 1.0 MC, 1 to 2 KW output, 800 lb., CW used for Army administrative and command
Model 92 Special Receiver MK3
Special Receiver Improvement 3
0.02 to 20.0 MC with 2 plug in coils, 102 lb., fixed or semi fixed installation.
Model 92 Special Receiver MK3, Coils
Model 92 Special Receiver MK3, Data Plate
Model 92 Special Receiver MK4
|Model 92 Special Receiver
80 lb. version of the above set
Howard Hood in Washington state has turned up one of these sets. It seems to be part way
between the 3 and 4 sets. It may have been a transitional model being tested or a local
modification to the Improvement 3 version. In addition if there are Improvements 3 and 4,
there must also be a basic model and Improvements 1 and 2. It is possible these never
entered active service with the military.
93 Short-Distance Short Wave Direction Finder Improvement 1
2.5 to 20 MC in 3 bands, direction finding and intercept receiver
Model 94 Mark 1
0.1 to 2.0 MC in 5 bands, direction finding and intercept operations
Model 94 Mark 1 Wireless set
0.14 to 15.0 MC, 275 watt output, , 500 lb., CW, MCW, voice land based transmitter
Type 94-2B Set
Mark 2 B Wireless set
This set, like the set above was also packed in several wooden chests which consisted of
the transmitter, the receiver, the gasoline generator and a large wooden chest that held
two cans of fuel for the generator. Translated as cleaning oil, it was decided that it was
really two cycle engine oil. These sets are also rare items. I have the engine oil chest
and the receiver but nothing else for this set. There must be examples out there but they
are rare items.
Type 94-2B & Battery Box
3.7 to 8.0 MC, 1 KW output, 2,200 lb., CW, Fixed Station transmitter used for Army
Administration and command
Model 95 Mark 4
Improvement 1 - 3.44 to 19.9 MC in 7 bands, 800+ lbs.,CW and voice, CW Fixed Station
transmitter used for Army Administration and command.
Wireless Set C, Mark 1 and Mark 305 Type Transmitter
Listed in TM E11-227A as probably for a tank, it had an output of 6 watts, was powered by
a dynamotor and had a 14' vertical whip antenna. No pictures were shown of the set in
operation but there was a picture of the set in a standard design wooden transport chest.
Model 2 Short Wave Mobile
3.38 to 14.0 MC, 240 Watts output in high power, 450+ lb., CW only, Fixed Station but can
be transported on poles.
All of these are large heavy base station type transmitters designed for semi or fixed
installations. Some weigh as much as 800 lb.. I think it is unlikely that any were sent
home by individual soldiers. If these sets exist in private hands, they have probably been
extensively modified. Obviously with titles such as Mark 4 and Improvement 1 there must be
an original set and an improved version.
The 1568 Set
Covered in Captured Enemy Equipment Report No 60. This radio, appeared to be a home-made
set and used the Japanese equivalent of the 1T4 tubes. Further investigation revealed that
the Japanese had an 8-01, 8-02, 8-03, 8-04, 8-05 and 8-06 tubes. These were probably
discovered in captured American equipment and quickly copied by the Japanese.
As soon as I think I have a complete list of all the Japanese sets, somebody turns up
another set. Ken Lakin has come up with an M-1 A/R T 3 Company Wireless Radio. This was
made by the Matsusitamusen Kabushiki Kaisha. In the latter stages of the war, many sets
were re-designated with the term Musen, which means radio.According to information
supplied by Mr. Takshi Doi, this was the Matsushita Radio Company. Matsushitamusen mean
(or wireless), Kabushiki mean stock, kaishia mean company. So it is Matushita Radio Co., (
Panasonic Co.) (National/Matushita Electric Co. in Japan).
Model 5 Experimental Radio
Wireless Set, Model 5
This set, probably made for last ditch defence of the home islands was a re packaged Type
94-6. The set was mounted in a wooden box, with very good craftsman ship and finger joints
for added strength. The radio, however is still the basic Type 94-6 circuit. A different
type of headphone and mike connectors are used. This set came on a shock mount and it
looked like more design effort went into the shock mount than the radio set.. The shock
mount was a wooden board that looked like it was a slide in/out shelf for a large cabinet.
Presumably the cabinet held the batteries and the headset and mike as well as other
accessories. This set raises the question, "If this is a Model 5, is there also a
Model 1, 2, 3, and 4,?"
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