Monitor Type 4436 - UK Vintage Radio Repair and Restoration Discussion Forum

G8BBZ · 29th Nov 2014, 12:14 pm

Hi All,
A long shot - Monitor Type 4436 is an ex-RAF airborne low frequency oscilloscope which I have been using for many years to look at audio waveforms and the like. It has a 3.5" CRT and comes in one of those crinkly pressurised cases that were used on aircraft.
The Y Deflection system has recently gone noisy, rendering the scope unuseable.
Does anybody have any info or knowledge of this bit of kit? What it was part of? used for? which aircraft?
I have tried all the usual sources for circuit info without success and suspect it is a part of some larger system rather than an item in its own right, so I am hoping to have more success if I can search on the 'larger system'
Or somebody out there might know all about it!
cheers
Peter G8BBZ

Sean Williams · 29th Nov 2014, 1:35 pm

A picture would really help - I think the type number rings bells for AI18, but there are so many parts to that system that the numbers could just be similar.

G8BBZ · 29th Nov 2014, 5:08 pm

Hi sean,
Photo attached
cheers
Peter G8BBZ

M0FYA Andy · 29th Nov 2014, 5:23 pm

Peter,
I believe this is an oscilloscope primarily intended for maintenance of the Vulcan NBS (Navigation and Bombing System, which included H2S Mk9).
It is covered in AP2894L.
PM me your email address and I can send you a pdf of the manual.
I have one of these units, although well down the 'round tuit' list!
Andy

29th Nov 2014, 12:14 pm	#1
G8BBZ Pentode Join Date: Oct 2005 Location: Hebden Bridge, West Yorkshire, UK. Posts: 200	Monitor Type 4436 Hi All, A long shot - Monitor Type 4436 is an ex-RAF airborne low frequency oscilloscope which I have been using for many years to look at audio waveforms and the like. It has a 3.5" CRT and comes in one of those crinkly pressurised cases that were used on aircraft. The Y Deflection system has recently gone noisy, rendering the scope unuseable. Does anybody have any info or knowledge of this bit of kit? What it was part of? used for? which aircraft? I have tried all the usual sources for circuit info without success and suspect it is a part of some larger system rather than an item in its own right, so I am hoping to have more success if I can search on the 'larger system' Or somebody out there might know all about it! cheers Peter G8BBZ __________________ Peter G8BBZ

29th Nov 2014, 1:35 pm	#2
Sean Williams Dekatron Join Date: Feb 2005 Location: St.Ippolyts, Hitchin, Hertfordshire QRA IO91UW Posts: 3,518	Re: Monitor Type 4436 A picture would really help - I think the type number rings bells for AI18, but there are so many parts to that system that the numbers could just be similar. __________________ Engineers make things work and have spare bits when finished

29th Nov 2014, 5:08 pm	#3
G8BBZ Pentode Join Date: Oct 2005 Location: Hebden Bridge, West Yorkshire, UK. Posts: 200	Re: Monitor Type 4436 Hi sean, Photo attached cheers Peter G8BBZ Attached Thumbnails

29th Nov 2014, 5:23 pm	#4
M0FYA Andy Nonode Join Date: May 2007 Location: Preston, Lancashire, UK. Posts: 2,511	Re: Monitor Type 4436 Peter, I believe this is an oscilloscope primarily intended for maintenance of the Vulcan NBS (Navigation and Bombing System, which included H2S Mk9). It is covered in AP2894L. PM me your email address and I can send you a pdf of the manual. I have one of these units, although well down the 'round tuit' list! Andy