Air Ministry Variable Resistor, 5U/4792

[aircraftclocks]

On ebay a vendor has a trimmer resistor which due to its shape, could be ideal for an electrical project I have in mind.
It is similar to the Rotax ZA.26XX series of trimmer resistors which are rated at 8W.
Problem is, I have been unable to locate any information on this Sec/Ref number.

Could someone with section 5U (it may have changed to 5UC) from AP1086, look the reference number up and advise what its resistance and power ratings are.

 

[ThomasP]

Hey aircraftclocks,

I checked the AP1086. Stores Reference Number 4792 is for a variable capacitor of the butterfly type with a variability of 100 + 100 pfd (whatever that means, maybe phase frequency detector for tuning purposes?), not a variable trimmer resistor (unless that is another name for it??). It does not give any other specs. If I am reading the document correctly, it was used with the Type 2524 radio set. If you can find data on the Type 2524 radio set (built by Philips in the late-1920s and early-1930s) maybe that could give you the specs you need?