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Missing meters for the TR9
added 3rd April 2009
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TR9 C Radio Set (pg1 rad)
This is
the ultimate in aviation history when it comes to radio.
Click on the
picture's to enlarge.
This is
an extremely rare TR9 C Radio set transmitter and receiver.
Its the first example I have ever seen and is in excellent
condition complete with its original transit case. It is
missing two instruments but these are not hard to find and
we will supply them with purchase. There is also a dial
missing and if anyone can replace this please
contact me cash waiting.
This set pre dates the
TR9 D which was also fitted to the very early Spitfires and
Hurricanes.
On
aircraft containing a TR9 set the aerial would be strung between the aerial
mast and the tail plane.
The
TR9C would have started its operational career
fitted to either the
Gloster Gladiator which entered
service in 1937 the
very last of the RAF Bi planes
or in
December 1937-
No. 111 Squadron at Northolt takes delivery of the first
Hawker Hurricane
fighters these aircraft took part in the Battle of France.
Note
the aerial wire denoting that this aircraft has a TR9 fitted
In
1938 the Spitfire
entered service with No. 19 Sdr at
Duxford who fought in the Battle of Britain.
Note
the aerial wire denoting that this aircraft has a TR9 fitted
TR9D
The RAF was using
TR9D sets in fighter aircraft including the Spitfire to provide an air-ground
and air-air R/T communications. The TR9D was an AM (i.e. not FM) set.
There was an electro-mechanical controller in the
cockpit to operate the set using Teleflex type cables.
The
TR9 (HF) set fitted to aircraft during
1932 and 1933 gave increased
range over that obtained previously - 35 miles air-to-ground
and 5 miles air-to-air being obtained.
At the time
in question, the sector commander or controller in the
operations room did not attempt to speak to the pilot of an
aircraft by radio telephone. Messages to pilots were written
on slips of paper and passed to R/T operators for
transmission. The R/T operators were specially chosen for
their clear enunciation and they sat in sound-proofed
enclosures.
In 1934, trials were carried
out in which controllers spoke directly to pilots - when the
trials proved successful, the practice was adopted in all
sectors.
There is
a reference to the need to make interceptions at ranges
greater than the 35 -40 miles R/T range of the TR9.
In January 1937 a requirement
for a range of 100 miles with aircraft flying at 5,000 feet
had been set out. In the meantime, 'the range deficiency of
the TR9 was overcome by using mobile ground R/T relay
stations, sited 30 or 40 miles forward of the sector RT
station'.
RAF Signals Museum:
There was a need for increased frequency stability for the
TR9. Frequency drift resulted from vibration and temperature
changes during flight. In April 1937,
crystal control was applied to the TR9; that was then
designated the TR9C.
Later, to facilitate transmissions for Direction Finding
(DF) purposes within a flight of aircraft while still
allowing R/T contact to be maintained, a second frequency
channel was provided on the TR9; that became the TR9D.
The
proposed VHF set was to be built such that it would be
physically interchangeable with the TR9, so that the
aircraft fit could be changed from VHF to HF, and vice
versa, at short notice!
By the end of 1940, 41 fighter
squadrons were completely re-equipped with VHF equipment.
The AOC-in-C of Fighter Command gave instructions for the
remaining squadrons in the Command to be 'changed over to
VHF R/T' (sic) by 1 March 1941.
Click on the
picture's to enlarge.
N/A
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TR9D Radio set (pg 1 rad)
I have recently found this
superb TR9D in complete condition. I cannot be stressed to
highly how very rare these sets are and in 15 years this is
only the second set I have seen. The internals are present
although I am unable to test this radio.
£2800
See reference section
for radio info
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This is the
receiver unit from the TR9 in excellent condition.
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TR9 Receiver (pg 1 rad)
£1200
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TR9D Control
Lever 2 (pg 1 rad)
Very rare send/receive control lever from
TR9 radio. relic condition.
Used in Spitfires and
Hurricanes fitted with the TR9. This one is unrestored
condition does not function
£125
See reference section
for radio info
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TR9D Control
Lever (pg 1 rad)
Very rare send/receive control lever from
TR9 radio. Restored relic condition.
Used in Spitfires and
Hurricanes fitted with the TR9. Does not function for display only.
£125
See reference section
for radio info
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Spitfire radio tuner (pg1 rad) Here
we have a radio tuner as fitted to Spitfires, Hurricanes and
probably other RAF fighters.
This particular
version was manufactured in the USA but is identical to the
British made version. It does have an Air ministry stamp and
so was made for use in RAF Fighters. It is in superb condition other
than missing the top switch cover and is probably
functional. I believe this particular model was used
in conjunction with the TR 5043 radio. Fitted to the LHS of
the Spitfire cockpit seen in situ below.
N/A
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TR9 Radio control (pg1 Rad)
Here we have a radio
remote control unit for the TR9 as fitted to Mk I and MK II
Spitfires and Hurricanes. It needs some restoration work as
the levers are seized. It is also missing the knob that
attaches to the front I have one of these and it will be
supplied with purchase. Would make a nice project for
someone and needs a bit of time and patience rather than
specialist knowledge and tools. This is an extremely rare
piece being in use for only a very short period during the
Battle of France and Battle of Britain.
I have
recently been told this one was fitted to a Hurricane due to
the attached bracket.
Seen below
in situ in a MK I Spitfire
£275
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TR 1934 Transmitter Radio
A very nice TR 1934 transmitter..
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Morse training aid (pg1 rad)
WW2 Morse
Training kit. It is in Good
condition working order, but the buzzer can be a bit
twitchy to set up but this doesn't affect the performance
of the kit. Original battery would have been a 4.5 volt
Bell battery, but it happily runs on 4xAA Cells.
One of the
original battery straps has been replaced
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Wartime Radio crystals (pg1 rad)
Some with A/M crowns. Specify
what crystals you need
£15 each
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Frequency tester (pg1 rad)
Click on the
picture's to enlarge them
This is a mint condition
frequency tester used by the USAF during WWII. It has a
full set of detailed instructions with lots of pictures of
its application in the aircraft. The unit is dated
April 1943. It seems to be
absolutely as new and complete.
1943
Not the “beginning of the
end, but the end of the beginning,” 1943 is the turning
point of the war as the Axis begins to lose everywhere. The
Soviets smash the Sixth Army in Stalingrad, killing or
capturing 600,000 men. The Allied Navies destroyed U Boats
and build ships faster than the Germans can sink them. The
Germans are driven out of North Africa. The Allies land in
Sicily and cause Mussolini to be expelled from the
government. Subsequent landings would prove more difficult.
Landings in France are planned and the biggest tank battle
of the war is fought outside a Russian town called Kursk.
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Spitfire Radio TR
5043 (pg1 rad)
Click on the
picture's to enlarge them
TR5043
This is an
extremely rare and sort after original and complete TR5043. This particular
model was used by the RAAF.
The TR1143 was also a VHF set but the controller,
although of the pushbutton type had the round type plug on the reverse. I
understand that when the USA entered the war there came a need for common R/T
between American bombers and their RAF escorts. I suspect that at this point the USAAF was introduced to the TR1143. They took this and created the SCR-522 (24v)
and the SCR-542 (12v).
TR5043 (SCR-522/SCR-542)
Externally the TR1143 and the SCR-522 /542 were the same
and used common connecting plugs, fittings and leads. The internals were
slightly different though and I have heard that the build quality on the US sets
was superior - perhaps due to the materials and components available to them. At
some point the US supplied the SCR-522 back to the RAF on lend-lease under the
designation of TR5043. Air Ministry items produced on a lend-lease basis seem to
have both a items US & AM label on them.
The TR5043 (SCR-522/542) was used in later
Marks of
Spitfire, Mosquitoes and both the P47 and P51 when the latter took over the USAAF bomber escort from the RAF.
Info supplied by Micheal Clark
See
reference section for more details on radios and transmitters.
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Aerial Tuner Seafire?(pg1 rad)
A/M 10D/1996
THIS IS A BOXED WW2, 1943 DATED, AERIAL
TUNING UNIT. BROAD ARROW MARKED, WITH Ref No: 10/D1673.
USED MAINLY ON SEAFIRE & CARRIER BASED AIRCRAFT. THIS
PIECE OF EQUIPMENT IS IN EXCELLENT CONDITION (see PIC of
internal's). IT CONTAINS A SILVER 'SNAIL TYPE' COIL, AND
ALL OTHER COMPONENTS. THE TUNING HANDLE WORKS, AS DO ALL OF
THE CONTROLS. COMES IN IT'S ORIGINAL WOODEN STORAGE CASE
£275
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A Gee in position in a Halifax Bomber
Gee in position in a Lancaster Bomber
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Gee Navigation unit(pg1 rad)
Ind 270 A/M10QB/16039
Gee was the ancestor of a number
of such "hyperbolic" navigation systems. The name "Gee" was
actually short for "Grid". Gee was a line-of-sight system,
and its accuracy for bombing was poor. At a distance of 400
kilometres (250 miles), Gee could target a site within an
ellipse about 1.6 kilometres long and 9.6 kilometres wide
(1 by 6 miles).
* Gee was actually first proposed in 1937, but
development didn't begin until 1940, when the TRE's Robert
J. Dippy pitched the idea to A.P. Rowe. First tests were in
August 1941, using a dozen handmade receiver sets fitted
into Vickers Wellington bombers, with operational
deployment planned for the following spring.
Gee was used in earnest on the night of 8 March 1942,
when 80 RAF Bomber Command pathfinders led a raid of 270
bombers against Essen, Germany, the opening blow in RAF
Bomber Command's war on the German cities. The Gee
transmitters in England provided navigation signals that
covered the Netherlands and the Ruhr Valley industrial
district in Germany
N/A
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TR1082/3 First Airborne Jammer(pg1 rad)
This is an incredible piece
of History and an almost unique item.
The TR1082/3 Wavemeter.
Please read the article I found about this unit under.
The very first airborne jamming unit dated from the late
1930's through to the Battle of
Britain. In superb condition nothing has been messed
about with internally its original and complete. It even
has its original carrying strap.
Click on the
picture's to enlarge.
£1750
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Handley page Halifax Trim(Page2 cont)
A really
nice and extremely rare
wheel for a remote D.F. loop
drive (aerial). Would be located in the Wireless Ops
position, of the Halifax. A/M crown so manufactured before
1944.
A/M 10J/10595
Click to
see full details |
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R.F Unit for Gee (pg1 rad)
This is superb very early R
F unit used in conjunction with Gee the first airborne
radar. The frequency on these units altered to avoid enemy
radar counter measures. Air ministry crown so
manufactured before the end of 1943. Fitted to Lancaster's,
Mosquito's and other RAF aircraft along side the gee unit.
RF type 23 A/M 10D/1016
serial nos G 23112.
£250
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R.F Unit for Gee B
2 (pg1 rad)
This second
unit is in excellent complete condition.
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R.F Unit for Gee B (pg1 rad)
RF TUNING UNIT FOR A WW2 GEE
RADAR SYSTEM FITTED ABOVE THE NAVIGATORS TABLE ON WW2
BOMBERS SUCH AS THE LANCASTER AND HALIFAX. THIS UNIT
IS A TYPE 26 WITH THE RARE VANIER DRIVE TUNER (ALSO USED ON
1032 RADIOS) THE BRASS PLATE IS MISSING OFF THE FRONT AND
THE DIAL COVER HAS A BIT MISSING. INTERNAL IT IS COMPLETE
THOUGH. THIS TYPE ALSO HAS A TRIMMER SWITCH ON THE FRONT. ON
THE BACK THE A.M. STORES REF IS 10A14788 OR 38 CAN'T MAKE IT
OUT. A NICE BIT OF WARTIME KIT. UNIT MEASURES
20CMX14CMX24CM QUITE HEAVY STEEL CONSTRUCTION.
Included is a
new replacement tuning knob
R.F Unit 2 for Gee B (pg1 rad)
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Switchbox Type D 5C/2467(pg1 rad)
Type D switchbox contains
two 5C/543 type B switches. It is primarily used for
controlling the power supply to airborne navigation systems
which require AC current, such as GEE
(A.R.I.5083) and Mandrel (A.R.I5171)
£65
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External Lights control (pg 2rad)
Fitted to the Seafire and Sea
Hurricane. Also to the firefly Cockpit.
External lights control panel. It
is for control and mode selection of Navigation, Formation and
Recognition Lights. If you read the legends on the various
controls I am sure you will see the logic of this. The
references to Morse are actually for light-signalled Morse not
for radio.
When flying a mission in formation with other aircraft,
signalling by light amongst the formation would assist in
maintaining radio silence.
Dim/Med/Bright, Off/Morse/Steady, Green/Red/Amber all
refer to lamp states.
Navigation/Formation/Identification are each a functional
lamp or group of lamps on the exterior of the aircraft.
£75
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click
picture's to enlarge
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Aerial change over switch/Rebecca (pg1 rad)
SWITCH UNIT TYPE 78A (24 VOLTS)
A/M
10FB/366.
DUAL
INPUT AND TWO DUAL OUTPUTS MARKED "LONG RANGE" AND "HOMING".
THIS IS PART OF A UNIT CALLED "REBECCA / EUREKA” USED IN
WORLD WAR 2 AIRCRAFT AS A NAVIGATION AID
£125
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Visual radar
receiver tube Village Inn
Click to see
this is Gunsight's
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B24 Liberator IFF Radio destruction Control (pg 1 rad)
This is the USAF version
of the IFF (identification friend or foe) and radio
equipment destruction control. This unit was used to destroy
the IFF and radio equipment if the aircraft was forced to
crash land in enemy territory. The B24 Liberator was used by
both the RAF and USAF. The RAF and USAF used
compatible radio systems and the Spitfire had a similar unit
on the RHS of the Cockpit. This is
mint new in its original box and dated 1943.
You can
see this unit in situ in a B24 Liberator Cockpit below above
and left of the Co Pilots control yoke.
B24
Liberator on convoy patrol over the Atlantic
£125
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Lancaster R 1155 Radio receiver 1 (pg 1 rad)
Fitted to Lancasters and
other RAF wartime bombers. It is in nice original condition.
Corrected
by a visitor Thanks Rob
Just thought you would like to know that the complete
R1155A receiver listed on your radio page was only used
during the war inside Halifax heavy bombers (denoted by the
type suffix 'A' on the serial plate).
A Halifax
bomber
Lancaster
£250
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Lancaster R 1155 Radio receiver 2 (pg 1 rad)
Fitted to Lancasters and
other RAF wartime bombers. It is in nice condition and looks
to have been modified as many were for use as a civilian
radio post war. You should seek expert
help before attempting to get it working and we are selling
it as display only.
£250
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Radio Control Box (pg 1 rad)
Wartime 10A/14983 unit
10AB radio/radar control box. The looks to have a fitting
for an antenna and so I would suspect it has something to do
with tuning the antenna. Wartime issue with nice brass plate
and kings crown would be for use in heavy bombers such as
the Lancaster.
Click on
the pictures to enlarge them
£65
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Morse Key 1 (pg 1 rad)
A nice original
Morse key in good condition. This piece was found on many
RAF WWII aircraft. In the Spitfire it was fitted to the RHS of
the cockpit. The Lancaster had two fitted to the main instrument
panel. This is the bakelite version.
I have recently
purchased a small quantity of mint examples in unopened original
boxes. If you purchase this item you will be send one of these
while stocks last
£65
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Morse Key (pg 1 rad)
A nice original
Morse key in good condition no corrosion. This piece was found on many
RAF WWII aircraft. In the Spitfire it was fitted to the RHS of
the cockpit. The Lancaster had two fitted to the main instrument
panel. This is the early metal alloy version. It has suffered
some paint loss but is a very nice collectable.
N/A
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Battle of the
beams
Click on the
picture's to enlarge.
£1200
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Hallicrafters S27 Ultra High frequency communications receiver.(pg1 Rad)
This radio was requisitioned
by the air ministry early in 1940 it being the only
commercially available radio receiver with a high enough
frequencies to detect the German navigation radar beams.
They were fitted in Avro Ansons enabling them to locate the
direction of the beams.
Click to Watch this video clip showing this radio
fitted in an Anson
an extremely rare and desirable piece
of Battle of Britain History.
The video clip was taken from The
secret war series Video volume 1 Battle of the Beams.
Churchill ordered a flight to
try to detect the beams. Avro Anson's were equipped with an
American Hallicrafters S-27 (then the only known
receiver capable of receiving the 40 MHz signal) The
Anson was far from ideal being slow, cold and extremely
noisy. It was the only aircraft capable of carrying the
radio set and the motor-generator set required to power it
that could be spared. The motor-generator was required
because the S-27 was a mains powered set but the Anson only
had a 28 volt DC electrical system.
The
German Lorenz
directed an aircraft down a line, so two crossed beams could
be used to fix a single spot. Several systems based on this
idea were studied through the 1930s. Lorenz had a range of
about 30 miles, enough for blind-landing but not good enough
for bombing raids over England. In addition the beams of
Lorenz were deliberately set wide enough that they could be
easily picked up at some distance from the runway centre line,
but this meant their accuracy at long ranges was fairly
limited. This was not a problem for blind landing, where the
distance covered by the fan-shaped beams decreased as the
airplane approached the transmitters, but for use in the
bombing role this would be reversed and the system would
have maximum inaccuracy over the target.
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B17/B24 Radio reciever(pg1 Rad)
Radio receiver
fitted in B17s and B24 Bombers good original condition. The
B17 receiver you have listed is a Marker Beacon Receiver and
is used by bombers to find their way back to the point of
origin when flying back from a mission. Info supplied by
Spitfire Spares customer.
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