Although
this example has suffered somewhat from exposure to damp, as you
can see from the following pictures, the interior is in excellent
condition.This receiver was used in RAF control towers during WWII together with the R1392. The latter was crystal controlled and had a slightly better valve line-up than the older R1132A.
The dial is marked "0 to180" and is not directly calibrated, the operator relying on a card next to the meter to let him know where to set the dial for a particular frequency.
Although
this example has suffered somewhat from exposure to damp, as you
can see from the following pictures, the interior is in excellent
condition.
Both this and the companion R1392 used an external power supply, typically the type 234A, which provided HT and LT. It's possible that a version of the 1132 was planned, or exists that has a built-in power unit because, as you can see below there's plenty of room available for this to the right of the RF section.
The receiver uses ten octal-based valves (a mixture of International and Mazda types) and a single UX4 (stabiliser) as follows:-
1st RF amplifier VR65 (SP61); Mixer VR65 (SP61), Oscillator VR66; 1st IF amplifier VR53 (EF39); 2nd IF amplifier VR53 (EF39); 3rd IF amplifier VR53 (EF39);
Detector and AGC VR54 (EB34); BFO VR53 (EF39); AF amplifier VR57 ; Audio output VR67; and Voltage stabiliser VS70 (CV1070)
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