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llama · 16th Sep 2019, 10:12 am

This is the transformer in the mystery RF device I recently offered. It has Air Ministry markings that look like 10M/162 or possibly 10A/162. It has about 10.5mm of laminations and the markings on one side are IP and OP with what looks like an unused tapping. On the other side it is marked OS, T2 and IS. I suppose these are all input/output, primary/secondary (apart from the "T2" connection).

Overall size is 5cm lamination length, 3.8cm max winding width and 2.9cm height. Coloured dark brown varnish.

I wonder if, just out of curiosity and a sense of completion, anyone has the appropriate AP that would identify the characteristics of the transformer and/or the equipment it's likely to have come from. Speculation welcomed!
Graham

16th Sep 2019, 10:12 am	#1
llama Octode Join Date: Jun 2006 Location: St Osyth, Nr Clacton, Essex, UK. Posts: 1,482	Mystery A.M. transformer This is the transformer in the mystery RF device I recently offered. It has Air Ministry markings that look like 10M/162 or possibly 10A/162. It has about 10.5mm of laminations and the markings on one side are IP and OP with what looks like an unused tapping. On the other side it is marked OS, T2 and IS. I suppose these are all input/output, primary/secondary (apart from the "T2" connection). Overall size is 5cm lamination length, 3.8cm max winding width and 2.9cm height. Coloured dark brown varnish. I wonder if, just out of curiosity and a sense of completion, anyone has the appropriate AP that would identify the characteristics of the transformer and/or the equipment it's likely to have come from. Speculation welcomed! Graham Attached Thumbnails __________________ Half my stuff is junk - trouble is, I don't know which half!