I’m trying to track down details and particularly a photo of a power socket that makes up part of the installation of the American IFF used in the Lockheed Hudson.
It is the battery connection point for several of the IFF components and is known as an SO-158 in US Signal Corps speak and their manual of plugs and sockets gives an AirMin number of 10H/261B for it.
It is a 3 pin socket with the pins in a triangle with the one at the top being approx twice the size of the two lower ones.
Hopefully once I know what I’m looking at then I can move on to actually finding one.
TIA
By: Denys Jones - 27th March 2017 at 21:19
Thanks folks that gets me started.
I began to think the B suffix I got from the US manual is a red herring as the description of the unit from that manual matches AndyY’s description.
However taking the image from vacb’s post I checked with my “Air Ministry Catalogue Serial No 1 Issue 1 April 1942” (which I got from Australia and was led to believe to be a localised version of a similar UK one) I see it matches what that catalogue calls a “10A/261 Socket type 108” but which actually on the illustration is marked as 10H/261B which explains why looking in the index didn’t get me there. So now I know what I’ve got to find thanks.
All very confusing with my starting point being a circuit diagram in a US manual!
[ATTACH=CONFIG]252126[/ATTACH]
By: Arabella-Cox - 27th March 2017 at 20:08
They’re right at the bottom of the pile, Bruce!
Anon.
By: Bruce - 27th March 2017 at 13:50
There are some smaller ones that relate to the IFF installation. Somewhere Ive got a box of them, but haven’t seen them for a while.
By: VACB - 27th March 2017 at 11:58
This is I believe from a Hurricane IFF installation (apologies but I don’t know who to credit for the image as it’s not mine)
I think what you need is an Air Ministry version of a standard ‘period’ MK 3 pin bakelite & ceramic power socket (as appears in the r/h side of the picture. I think I can just make out 10H/261B on it).
Cheers
Michael
[ATTACH=CONFIG]252114[/ATTACH]
By: AndyY - 27th March 2017 at 09:25
This is the type I was thinking of, although this has a Section 5C marking.
Andy
By: AndyY - 27th March 2017 at 09:19
I’m not sure if it is of any help, but my copy of section 10H says this about 10H/261 (no ‘B’) – Socket Type 108, 3-pole, 5-amp, anti-flash, bakelite moulded cover, porcelain base.
I’ve seen what was essentially a standard domestic 5 amp MK mains socket with AM markings, I wonder if it’s one of these?
Andy
Sign In
March 27, 2017 at 3:36 am