Military Wireless in the Midlands Museum
The Japanese Section
A rather special Japanese set, a Walkie Talkie resembling the US BC-611 somewhat but operating on higher frequencies.
A Japanese VHF set, I still need to find out more info on this set though.
A 94 Type 3 Special Receiver, in quite good condition so hope to have it working soon.
Type 53C receiver, in its box, with coil packs and spare tubes.
Tobi Aircraft receiver and transmitter Mk5.
Receiver
internal
Fig 1
Receiver
internal
Fig 2
Transmitter
uinternal
Fig 3
Transmitter
internal
Fig 4
The Tobi pair, cleaned up and nearly ready to go..
Recent addition. Type 66 HF transceiver. 3 Valve hf set, apparently quite rare. I have started
restoration, this involves basically a paint touch up, reglazing of the two meters and finding a couple
of knobs.
After a bit of a clean up and tlc...
Another recent addition: TM Handy Set, Japanese Navy. 2 valve, 4-12 Mhx, 2.5W CW... more later
Receiver Type 94 -2 Mk 2. Ground to Air communication. After a clean it looks really
good, even better when I found it still worked. Just one broken wire on the bfo switch. A previous
owner had removed the rotary ht generator and built a mains (115v) psu in its place. I have now
removed this and replaced it with a 6v inverter supply, the set is now operational again.
Now, an Army Model 99 "Tobi" Mark 3 Radio Set. Obviously from a crash wreck. So, do I restore
or leave as is. Thats the question. ed: Have decided to restore, pics later.
Now after some restoration work the set is starting to look a little better.
Amazingly, I found another, complete set.
Model 97 Easy to use Wireless Telephone,
Product No 181-2 Navy Logo, Made in June 1943, Sendai ( city in Japan)
by Nichiden Radio Manufacturing Company Ltd.
If anyone has further info on this set I would be most interested.
This super little combo is a receiver transmitter, Model 94 Mk 5, hf, qrp, and still going strong..
close ups of the two units now.. tx first
then receiver unit ..
A very small VHF set, Model 94 Mk 6, man pack, single valve rx/tx ..This is the later 3 band version
The earlier single band version..
Side view of the VHF set, showing the small Morse key built ito the side of the case.
The mule carried field set, Model 94 Mk 3, houses a single valve transmitter and a s/het
receiver. The batteries for rx htr and ht and tx htr are carried in the
compartment at the base, the tx ht was provided by a handcranked generator.
The Japanese version of the HRO, using a similar system of plug in coil units and external power supply. The set uses 9 valves in a single conversion role but with an added feature of the user being able to select between two IF ranges, depending upon the band in use, by using plug in IFT units.
Another receiver, Mark 41 Type D receiver part of the Model 94 Mk 3C station, awaiting restoration, plug in coil pack again..
Newest item in the collection, Japanese Field telephone, dated Feb 1943
A small Naval test set, crystal calibrator with modulated output.
The xtal inserts behind the central door and is powered from an
external supply (battery ?). I believe the unit was used for Naval
Aircraft radio alignment. Also, a nice little Japanese Test Meter, still working.
A Morse Code unit, not sure if its a practice oscillator or a line sending device, more later.
Morse unit
Fig 1
Morse unit
internal
An interesting item found at the back of a junk shop in Cornwall. Apparently, it's an Army Gunnery
calculator, Plotting fall of shot and the like. The characters are to do with degrees, angles etc.
So, if anyone knows where I can get a Japanese artillery piece?
( Click on small images for a larger version)
Domo Arigato, Konichiwa...............
Send an e-mail to: Ben Nock, G4BXD
********* Pictures by G4BXD are G4BXD copyright ********
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internal Fig 1 |
internal Fig 2 |
uinternal Fig 3 |
internal Fig 4 |
The Tobi pair, cleaned up and nearly ready to go..
Recent addition. Type 66 HF transceiver. 3 Valve hf set, apparently quite rare. I have started restoration, this involves basically a paint touch up, reglazing of the two meters and finding a couple of knobs.
After a bit of a clean up and tlc...
Another recent addition: TM Handy Set, Japanese Navy. 2 valve, 4-12 Mhx, 2.5W CW... more later
Receiver Type 94 -2 Mk 2. Ground to Air communication. After a clean it looks really
good, even better when I found it still worked. Just one broken wire on the bfo switch. A previous
owner had removed the rotary ht generator and built a mains (115v) psu in its place. I have now
removed this and replaced it with a 6v inverter supply, the set is now operational again.
Now, an Army Model 99 "Tobi" Mark 3 Radio Set. Obviously from a crash wreck. So, do I restore
or leave as is. Thats the question. ed: Have decided to restore, pics later.
Now after some restoration work the set is starting to look a little better.
Amazingly, I found another, complete set.
Model 97 Easy to use Wireless Telephone,
Product No 181-2 Navy Logo, Made in June 1943, Sendai ( city in Japan)
by Nichiden Radio Manufacturing Company Ltd.
If anyone has further info on this set I would be most interested.
This super little combo is a receiver transmitter, Model 94 Mk 5, hf, qrp, and still going strong..
close ups of the two units now.. tx first
then receiver unit ..
A very small VHF set, Model 94 Mk 6, man pack, single valve rx/tx ..This is the later 3 band version
The earlier single band version..
Side view of the VHF set, showing the small Morse key built ito the side of the case.
The mule carried field set, Model 94 Mk 3, houses a single valve transmitter and a s/het
receiver. The batteries for rx htr and ht and tx htr are carried in the
compartment at the base, the tx ht was provided by a handcranked generator.
The Japanese version of the HRO, using a similar system of plug in coil units and external power supply. The set uses 9 valves in a single conversion role but with an added feature of the user being able to select between two IF ranges, depending upon the band in use, by using plug in IFT units.
Another receiver, Mark 41 Type D receiver part of the Model 94 Mk 3C station, awaiting restoration, plug in coil pack again..
Newest item in the collection, Japanese Field telephone, dated Feb 1943
A small Naval test set, crystal calibrator with modulated output.
The xtal inserts behind the central door and is powered from an
external supply (battery ?). I believe the unit was used for Naval
Aircraft radio alignment. Also, a nice little Japanese Test Meter, still working.
A Morse Code unit, not sure if its a practice oscillator or a line sending device, more later.
Morse unit
Fig 1
Morse unit
internal
An interesting item found at the back of a junk shop in Cornwall. Apparently, it's an Army Gunnery
calculator, Plotting fall of shot and the like. The characters are to do with degrees, angles etc.
So, if anyone knows where I can get a Japanese artillery piece?
( Click on small images for a larger version)
Domo Arigato, Konichiwa...............
Send an e-mail to: Ben Nock, G4BXD
********* Pictures by G4BXD are G4BXD copyright ********
|
|
|
|
Fig 1 |
internal |
An interesting item found at the back of a junk shop in Cornwall. Apparently, it's an Army Gunnery calculator, Plotting fall of shot and the like. The characters are to do with degrees, angles etc. So, if anyone knows where I can get a Japanese artillery piece?
( Click on small images for a larger version)
|
|
|
|
|
Domo Arigato, Konichiwa...............
Send an e-mail to: Ben Nock, G4BXD
********* Pictures by G4BXD are G4BXD copyright ********