WOBBULATOR / DISPLAY UNIT for RA.17
This is not the Panoramic adapter for the RA.17. Instead, this is a test equipment used
to align the first (40 Mhz) IF filter in the RA.17. That filter consists of several critically
coupled and staggered tuned circuits. The RA.17 is virtually impossible to align without this
wobbulator, the CT.504 or a spectrum analyser with a sweep unit.
RACAL called this alignment tool "a combined Wobbulator/Display unit".
Here is a detail of the front controls.
That is all the information I have of this quite rare unit.
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