Glad to’ve been of help Denys!    The publication I was referring to is +500 pages and describes the development history of RAF armament.    I don’t think that the turret related content will be of much help in any restoration project but it’s an interesting read nonetheless.    Being quite a thick book scanning pages won’t be easy but if you’re interested I can always give it a try.   Just PM me your e-mail address and I’ll see what I can do for you.

If you google pics of Boulton Paul Defiant turrets (the “A” turret if I’m not mistaken you should be able to find some where you can actually see the solenoids).

Cheers,

Walter